ATI TEAS 7- SCIENCE PACKAGE

TEAS 7 SCIENCE

Pass with our ideal TEAS 7 Science study experience with precise questions with answers covering all versions of the TEAS 7 Science section.

TEAS 7- SCIENCE 2024

1. Which of the following contains a human’s hereditary information?

A. Plasmids B. ATP C. Chromatin D. Histones 2. If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus?

A. A + 1, Z+ 1 B. A +1, Z - 1 C. A – 1, Z - 1 D. A – 1, Z + 1 3. Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents?

A. Helper T-cells B. plasma cells C. natural killer cells D. cytotoxic T-cells 4. Experiments cannot validate hypotheses, only falsify them.

The statement above can be restated in which of the following ways?

A. Proving a hypothesis exempts it from further testing.

B. A hypothesis that has not been falsified remains provisional.

C. Certain concepts cannot be subjected to direct experimentation.

D. Until disproved, an explanation for an observation is valid 5. Which of the following tissues lines the interior surfaces of the heart?

A. Endocardium B. Epicardium

C. Myocardium D. Pericardium 6. Which of the following is classified as a noninfectious disease?

A. Chikungunya B. psoriasis C. Brucellosis D. Dengue 7. An experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition. Which of the following is the scientific purpose of such a climb?

A. To measure the oxygen levels at high elevation B. To identify routes that can be explored in future climbs C. To show that modern technology makes climbing safer D. To assess why the earlier expedition failed 8. Which of the following tools can be used to measure the turbidity of a liquid by measuring the transmission of light through the sample?

A. Centrifuge B. Microdensitometer C. Electrophorometer D. Spectrophotometer 9. Which of the following respiratory structures is affected by a disease that disrupts gas exchange, such as emphysema?

A. Alveoli B. Secondary bronchi C. Trachea D. Primary bronchi 10. In pea plants, green pod color (G) is dominant to yellow pod color (g). A cross was done between a plant with green pods and a plant with yellow pods. Of the resulting offspring, 50% had yellow pods. Which of the following were the genotypes of both parent plants?

A. gg × gg B. Gg × Gg C. Gg × gg D. GG × gg 11. Which of the following would result in an increase in the rate of a chemical reaction?

A. Decreasing the concentration of the reactant B. Using a mortar and pestle to grind a solid reactant to powder C. Sealing the reaction in an airtight container D. Adding more of the product 12. Which of the following is correct regarding the pH scale?

A. A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4 B. A substance with a pH of 3 is 2 times more acidic than a substance with a pH of 4 C. A substance with a pH of 3 is 2 times more alkaline than a substance with a pH of 4 D. A substance with a pH of 3 is 10 times more alkaline than a substance with a pH of 4 13. Use the table below to answer the question.

Object A B C D

Mass 5.0 g 5.0 g 30.0 g 35.0 g

Time of fall 2.0 sec 1.0 sec 0.5 sec 1.5 sec

Which of the following conclusions is supported by the data?

A. The greater an object, the faster it will fall.

B. The time of fall is independent of the mass of the object.

C. Air resistance is greater for A than B. D. Objects A and B will fall at the same rate.

14. A slice of apple left on a table slowly goes brown due to an enzymatic reaction. Dipping the apple slice in lemon juice prevents it from browning. Which of the following best explains the result?

A. Lemon juice functions to dilute the brown material.

B. Lemon juice functions to bleach the brown material.

C. Lemon juice has pH which inactivates the enzymes.

D. Lemon juice has enzymes which reverse the browning reaction.

15. Which of the following is an example of a biological macromolecule?

A. Protein B. Amino acid C. Nucleic acid D. Monosaccharide 16. Which of the following describes one difference between skeletal muscles and cardiac muscles?

A. Skeletal muscles are auto rhythmic, whereas cardiac muscles are not.

B. Cardiac muscles contain intercalated discs, whereas skeletal muscles do not.

C. Skeletal muscles are found in the viscera, whereas cardiac muscles are found in the cranium.

D. Cardiac muscles are voluntary, whereas skeletal muscles are involuntary.

17. Which of the following atoms is most likely to become a cation?

A. Potassium, atomic number 19 B. Helium, atomic number 2 C. Fluorine, atomic number 9 D. Oxygen, atomic number 8 18. The component of an atom that possesses relatively little mass, thus being negligible in calculating the atomic mass number, is the?

A. Quark B. Neutron C. Proton D. Electron 19. Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings?

A. Lack of worm infestations is the cause of some autoimmune disorders.

B. Worm infestation reduces the severity of certain autoimmune disorders.

C. Worm infestation prevents the body from immune malfunction.

D. Worm infestation exacerbate the body’s immune reactions.

20. When a volcano erupts, its actions are similar to which of the following events?

A. A tree root pushing up through the pavement.

B. A building burning to the ground.

C. A flood eroding the banks of a stream.

D. A can of soda fizzing when it is opened.

21. Which of the following organelles is the site of intracellular digestion?

A. Lysosomes B. Centrosomes C. Ribosomes D. Mitochondria 22. Which of the following cell transfer pigment granules is adjacent to epidermal cells?

A. Merkel cells B. Langerhans cells C. Keratinocytes D. Melanocytes 23. Which of the following hormones regulates blood calcium levels?

A. Melatonin B. Growth hormone C. Parathyroid hormone D. Norepinephrine 24. In order to determine the effects of energy drinks on women’s running speed, researchers gave 300 women an energy drink and then recorded the time it took each of them to run 2 miles. After collecting the results, researchers concluded that energy drinks increase the speed of running in women.

Which of the following further tests would best help support this conclusion?

A. Repeat the same experiment using 300 men.

B. Repeat the experiment, giving half of the women water and the other half the energy drink.

C. Repeat the experiment, giving the women two different energy drinks.

D. Repeat the experiment, having half of the women run 2 miles and the other half run 5 miles.

25. Which of the following body systems breaks down proteins into amino acids?

A. Endocrine B. Excretory C. Digestive D. Circulatory 26. Which of the following is the term given to the sequence of nucleotides that contain information to make a specific protein molecule?

A. Operator B. Promoter C. Locus D. Gene 27. The hip is an example of which of the following types of joints?

A. Ball-and-socket B. Pivot C. Hinge D. Gliding 28. Which structure of the female reproductive system is the source of the blood and mucosal tissue during menstruation? (You will find hot spots to select in the artwork below. Select only the hot spot that corresponds to your answer.)

29. If a portion of a strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary strand read?

A. 3’ AGCTAGCGT 5’ B. 3’ TCGATCGCA 5’ C. 5’ UCGUCGCA 3’ D. 5’ TCGUTCGCU 3’ 30. Which of the following nucleotides is only found in RNA? A. Guanine B. Thymine C. Adenine D. Uracil 31. Which of the following pathways best represents the expected flow of blood from the human heart to an organ?

A. Blood pumped from the heart first enters arteries that then narrow to form veins that deliver blood to the organ.

B. Blood pumped from the heart first enters the arteries than then narrow to form arterioles that deliver blood to capillaries of the organ.

C. Blood pumped from the heart first enters veins that then narrow to form venules that deliver blood to arteries of the organ.

D. Blood pumped from the heart first enters arterioles that then merge to form arteries that deliver blood to the organ.

32. Which of the following correctly orders structures from simple to complex?

A. Organs, tissues, cells, atoms B. Cells, tissues, atoms, organs C. Atoms organs, tissues, cells D. Atoms, cells, tissues, organs 33. Which of the following structures drains oxygen-depleted blood from the kidney?

A. Ureter B. Renal artery C. Urethra D. Renal vein 34. The vermiform appendix extends from the region of the large intestine known as which of the following?

A. Jejunum B. Cecum C. Ischium D. Rectum 35. Which of the following structures is present in both prokaryotic and eukaryotic cells?

A. Golgi apparatus B. Cell membrane C. Chloroplast D. Endoplasmic reticulum 36. Which of the following molecules contains the fewest covalent bonds?

A. Chlorine molecule (CI2) B. Ammonia molecule (NH3) C. Water molecule (H20) D. Methane molecule (CH4) 37. The ‘gray matter’ of the brain is largely made up of which of the following?

A. Meninges

B. Neuron cell axons C. Neuron cell bodies D. Corpus collosum 38. Which of the following parts of the eukaryotic cell is responsible for making ATP? A. Nucleus B. Centrioles C. Lysosome D. Mitochondria 39. Which of the following endocrine organs in the diagram below is involved in regulating milk production following child birth?

A. Thyroid gland B. Adrenal glands C. Pituitary gland 40. In which of the following locations does fertilization of an egg cell typically occur?

A. Uterus B. Fallopian tube C. Ovary D. Cervical canal 41. Using the equation pH = -log[H+], a solution with a [H+] = 10-9 M has a pH of which of the following?

A. 10 B. 9

C. 5 D. 1 42. Which of the following organs removes nitrogenous waste from the body?

A. Large intestine B. Gall bladder C. Liver D. Kidneys 43. Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli?

A. Conversion to carbon monoxide B. Diffusion down a concentration gradient C. Passive transport using carrier proteins D. Active transport using energy 44. Which of the following characteristics of water helps explain why coastal areas experience less dramatic temperature changes during the day than more inland areas?

A. Water’s adhesive properties prevent evaporation.

B. Water forms covalent bonds with other water molecules.

C. Water has a high specific heat capacity.

D. Water is a versatile solvent.

45. Which of the following demonstrates a chemical reaction of water?

A. Water produces gas with sodium metal B. Water boils to produce steam at 100 degrees Celsius (212 degrees Fahrenheit) C. Water dissolves sugar.

D. Water and oil separate when combined.

46. Which of the following distinguishes endocrine and exocrine glands from one another?

A. The biochemistry of their secretions B. The effect their secretions have on target cells C. The presence or absence of nerve innervation

D. The presence or absence of ducts 47. A study found two processes, process A and B to be correlated. Which of the following is true for these processes?

A. The study cannot indicate whether process A and B have a negative relationship.

B. The study cannot indicate whether process A and B have a positive relationship.

C. The study indicates that process A causes process B. D. The study does not indicate a causal relationship between the processes.

48. Escherichia cell is plated on nutrient agar plates that each contain a different type of antibiotic. The shaded area represents growth of the bacteria. Which of the following plates contains bacteria that were most resistant to the antibiotic?

49. Water molecules enter cells by which of the following transport mechanisms?

A. Proton pumps B. Facilitated diffusion C. Gated channels D. Electrochemical gradients

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ATI TEAS 7 Science 1. Which of the following is the appropriate threshold value for mammalian neurons? o -80 Mv o -55 mV o 0 mV o +35 mV 2. In a certain plant, red flowers are dominant over white flowers. A plant heterozygous for red flowers and a plant with white flowers are crossed. Which of the following is the expected proportion of phenotypes in the next generation? o 2 red, 2 white o 4 red, 0 white o 3 red, 1 white o 1 red, 3 white

3. Which of the following structures is present in both prokarayotic cells? o Endoplasmic reticulum o Cell membrane o Chloroplast o Golgi apparatus

4. Which of the following can lead to a tsunami? o Sunspot activity o Lightning strikes

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o Flooding o Earthquakes

5. Which of the following are used to determine a person’s DNA sequence? o Genes o Blood type o Hormones o Enzymes 6. Which of the following organic molecules contain both an amine and carboxyl group? o Lipids o Chitin o Cellulose o Proteins 7. Osteoporosis results from which of the following o A decline in osteoclast activity while osteoblast activity continues at expected levels o An increase in osteocyte activity while osteoblast activity continues at expected levels o A decline in osteoblast activity while osteoblast activity continues at expected levels o An increase in osteocyte while activity continues at expected levels.

8. Which of the following is released by one type of immune cell to directly activate type of immune cell? o Lysozymes o Perforin o Cytokines o Granzymes

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9. The measurement indicated by the line across the centre of the cell is best referred to as which of the following? o Radius o Diameter o Area o Volume 10. Which of the following properties of water explains its solvent abilities for certain substances? o High surface tension o Kinetic energy of liquid water molecules o Polarity of water molecules o High specific heat 11. Which of the following vessels caries oxygenated blood? o Pulmonary vein o Inferior vena cava o Pulmonary artery o Superior vena cave 12. Which of the following is a mass with the ovary that secretes hormones to maintain the uterine lining during pregnancy? o Umbilical cord o Corpus luteum o Oocyte o Oviduct 13. To separate genomic DNA fragments by size, which of these laboratory methods is most useful?

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o Spectrophotometry o Electrophoresis o Filtration o Titration 14. In a plant in which fuzzy leaves (F) are dominant over smooth leaves (f), which of the following crosses will produce only offspring with smooth leaves? o ff x ff o Ff x Ff o FF x FF o Ff x ff 15. Which of the following physiological responses is caused by the release of antidiuretic hormones? o Decrease in water reabsorption in the collecting duct o Decrease in the concentration of calcium in the glomerulus o Increase in water reabsorption in the collecting duct o Increase I the concentration of calcium in the glomerulus 16. Which of the following is the atomic number that has 12 protons and 12 neotrons o 12 o 24 o 1 o 144 17. Which of the following glands synthesizes antidiuretic hormone? o Pineal gland o Hypothalamus o Thymus

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o Pancreas 18. Which of the following is the process in which an ovarian follicle matures and releases a reproductive egg? o Menstruation o Ovulation o Fertilization o Oogenesis 19. Which of the following reasons explains why it is important for new scientific findings to be published? o Publishing findings will help scientists become more biased o Other scientists can validate or disapprove the findings o Scientists will get paid if their findings are published o This prevents other scientist from performing similar tests.

20. Which of the following substances is responsible for donating H+ ions to act as a buffer when blood pH rises? o Carbon dioxide o Carbon monoxide o Oxygen o Carbonic acid 21. Which of the following is the structure through which blood exits the glomerulus? o Proximal tubule o Distal tubule o Afferent arteriole o Efferent arteriole 22. Which of the following is the function of totipotent cell?

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o Carries electrical impulses o Fights infectious diseases o Aids the maturation of sex cells o Develops into any kind of cell 23. Which of the following statements best supports the hypothesis that viruses can cause cancer? o Genes that regulate cell division are found in some viruses o Viruses and cancer cells both replicate rapidly o Cancerous and normal cells share genetic sequences o Cellular DNA has sequences related to viral sequences 24. In a phase diagram, which of the following is the term used for a substance held at temperature and pressure where the solid, liquid, and gaseous states of a substance exist simultaneously? o Critical point o Triple point o Critical temperature o Absolute zero 25. Which of the following microorganisms lack their own metabolic pathways and can reproduce inside a host cell? o Protozoa o Helminths o Viruses o Bacteria 26. If a portion of a strand of DNA bases reads 5’ AGCTAGCGT 3’, what would the sequence of bases on the complementary stand read?

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o 3’ AGCTSGCGT 5’ o 5’ UCGAUCGCA 3’ o 5’ TCGUTCGCU 3’ o 3’ TCGATCGCA 5’ 27. In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure the liquid and gaseous phases of a substance merge together into a single phase? o Critical point o Triple point o Critical temperature o Absolute zero 28. Which of the following indicates the function of sodium bicarbonate released by the pancreas? o Sodium bicarbonate stimulates the pyloric sphincter o Sodium bicarbonate is a protease that digests carbohydrates o Sodium bicarbonate neutralizes the acidity of chime o Sodium bicarbonate inhibits peristalsis 29. Which of the following types of cells produce and release antibodies? o Natural killer cells o Helper T-cells o Cytotoxic cells o Plasma B cells 30. The cytoskeleton of a cell is comprised of which of the following macromolecules? o Proteins o Carbohydrates

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o Nuclear acids o Lipids 31. Which of the following summarizes a change that takes place as a solid turns into a liquid? o Intermolecular forces between particles become stronger o Particles move closer together o Particles become less ordered o Particles have a decrease in mobility 32. Which of the following are specific immune response (select all that apply)? o T lymphocyte activation and clonal expansion o Antibody production o The formation of memory B cells o Complement proteins binding to and destroying bacteria o Endocytosis of a virus by a phagocytic lymphocyte 33. Which of the following is the main function of centrosomes in animal cells? o Pathogen digestion o Organelle trafficking o Microtubule organization o Cytoplasm 34. Testosterone is categorized as which of the following types of hormone? o Aldosterone o Progestin o Androgen o Estrogen

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35. Which of the following are the two major parts of the nervous system? o Autonomic nervous system and somatic nervous system o Peripheral nervous system and somatic nervous system o Autonomic nervous system and central nervous system o Peripheral nervous system and central nervous system

36. Hiker who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicate that he was shot with an arrow more than 5,000 years ago. Which of the following would be the best reason for prolonged preservation of the body? o The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found o The food that the person ate contained toxins that killed the bacteria that would otherwise destroyed the body o The arrow wound caused blood to flow out of the body, which led enzymes that would break down tissue to be cleared from the body o The ultraviolet rays at such a high altitude caused all the body’s molecules to be preserved.

37. Nitrogen gas is an extremely stable because its structure contain which of the following? o Hydrogen bonds o Triple covalent bonds o Resonance bonds o Ionic bond.

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38. Which of the following best describes the result of using a catalyst in a chemical reaction? o The yield of a product is increased o A greater amount of heat energy is released by the reaction o A more desirable product is often formed o The reaction is completed in a shorter amount of time.

39. Which of the following substances protect the skin from ultraviolet radiation? o Kerstin o Melanin o Perspiration o Sebum

40. In a hypertonic solution, water flows through aquaporins embedded in the plasma membrane of the cell. This type of transport is best known as which of the following? o Osmosis o Active transport o Facilitated diffusion o Diffusion

41. Which of the following is a group that can be measured against the experimental group? o Control o Variable o Manipulated o Responding

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42. A myocardial infarction affects which of the following blood vessels of the heart? o Coronary artery o Pulmonary o Vena cava o Aorta

43. Which of the following processes caused most of the carbon dioxide from the blood to most into alveoli? o Active transport using energy o Diffusion down a concertation gradient o Passive transport using carrier proteins o Conversion to carbon monoxide

44. Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia? o Sebum o Water o Urea o Lysozymes

45. Lithium has an atomic number of 3 and a mass of 7, which of the following is the number of protons in a lithium atom o 12 o 7

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o 4 o 3 46. Which of the following allows the AIDS virus, which contains RNA to insert viral DNA into the DNA of a host T-cells after the AIDS virus enters the cells? o Receptor proteins located on the surface of the virus o Reverse transcriptase, an enzyme encoded by the virus o The phospholipids found on the envelope of the virus o The protein that makes up the capsid of the virus

47. A patient’s urine output was 800 ml/hr. following a treatment, the patient’s urine output increased to 1200 ml/hr. What is the percentage change in the urine output? (round the answer to the nearest whole number) 50%

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ATI TEAS 7 SCIENCE (97% Correct)

1. Which of the following describes the function of tendons?

o

Tendons attach skeletal muscle to bone

o

Tendons attach two bones

o

Tendons attach bones to ligaments

o

Tendons attach skeletal muscles to ligaments

2. Which of the following substances is excreted by sweet glands in response to the breakdown of protein and the formation of ammonia? o

Lysoymes

o

Water

o

Urea

o

Sebum

3. Which of the following terms describes the removal of metabolic waste from the body? o

Secretion

o

catabolism

o

anabolism

o

Excretion

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4. The shortening of a sarcomere in skeletal muscle is directly due to the interactional of which of the following?

o

Acetylcholine and acetylcholinesterase

o

Pepsin and pepsinogen

o

Myosin and actin

o

Dynein and kinesin

5. Mutations in which of the following types of cells can be inherited by offspring?

o

Ovarian

o endocrine o

neural

o

muscle

6. Which of the following parts of the central nervous system releases chemicals that regulate the pituitary gland? o

Hypothalamus

o Cerebellum o

Thalamus Contact us via perfectstudyfiles@gmail.com

o

Spinal cord

7. A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis? o

There is no flow of water

o

The net flow of water into and out of the cell is zero

o

There is a net flow of water out of the cell

o

There is a net flow of water into the cell.

8. Which of the following is an example of active transport? o

Aquaporins in kidney cells that help concentrate urine

o

Movement of substance from an area of high concentration to an area of low concentration

o

Movement of a sodium and potassium across the cell membrane against the

concentration gradient.

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o

Loss of water from a cell in a hypertonic solution

9. Which of the following vessels is responsible for carrying blood from the upper body to the right atrium of the heart? o

Pulmonary veins

o

Aorta

o

Pulmonary arteries

o

Superior vena cava

10. Carbohydrates are composed of which of the following?

o

Nucleic acids

o

Monosaccharides

o

Isoprenoids

o

Amino acids

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11. The following equation summarizes the carbonic acid-bicarbonate ion buffer system of the blood CO2+H2O

H2CO3

HCO3- +H+

Which of the following equations shows the reaction that takes place when there are excessive H+ ions? o

H2CO3

CO2 + H2O

o

HCO3- + H+

H2CO3

o

CO2 + H2O

H2CO3

o

H2CO3

HCO3- +H+

12. A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2 month period, all with illumination at 1 meter distance from plants grown with the same sol and watering conditions 3 Arabidopsis plant exposed to ultraviolet light (UV) 3 Arabidopsis plants exposed to infrared light (IR) 3 Arabidopsis plants exposed to white light

At the end of the experiment, she finds that the IR treated plants are scorched, the UV Contact us via perfectstudyfiles@gmail.com

treated plants have wilted, but the white light created plants are growing normally.

Which of the following statements is most likely to be correct?

o

Three plants do not produce sufficient replications to draw a conclusion

o

Wavelength of lights the only variable that has been changed between groups

o

The wavelength of light does not affect photosynthesis

o

Infracted light contains more energy than the other wavelengths.

13. Which of the following is a weakness of a correlational study?

o

Cannot be replicated

o

Cannot determine causation

o

Inability to control independent variables

o

Too many variables to control

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14. A vasectomy is a procedure in which the vas deferens are cut. Which of the following describes why a vasectomy leads to infertility? o

The vasectomy blocks the movement of sperm from the prostate gland to the bulbourethral gland

o

The vasectomy blocks the movement of sperm from the epididymis into urethra

o

The vasectomy blocks the movement of sperm from the ejaculatory duct into the bulbourethral glad

o

The vasectomy blocks movement of sperm from a testis into the epididymis

15. Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity? o

Nonspecific

o

Innate

o

Transplantation

o

Active

16. An equal mass of which of the following states of matter could completely fill either a Contact us via perfectstudyfiles@gmail.com

100 ml or 500 ml container? o

Gas

o Solid o

Mixture

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o

Liquid

17. Carbon has an atomic number of 6. Which of the following is true about isotope C-12

o

C-12 possesses 7 neutrons and 5 electrons in its nucleus

o

C-12 possesses 6 protons and 6 electrons in its nucleus

o

C-12 possesses 6 neutrons and 6 protons in its nucleus

o

C-12 possesses 7 protons and 5 neutrons in its nucleus.

18. Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis o

Nervous tissue

o

Muscle tissue

o

Bone tissue

o

Connective tissue

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19. Which of the following statements about COVID-19 vaccine initiation is supported

by the data below? **There is a graph not included**

o

The highest daily rate occurred in December

o

The cumulative total for January is around 13 million

o

The cumulative total fell by 2 million between January 9 and January 10

o

The daily rate for December 29 and January 5 are similar

20. How many times larger is the volume of a cube that is 4 mm on all sides compared to the volume of a cube that is 2 mm on all sides (round the answer to the nearest whole number) 8 times

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21. A researcher collects high-resolution photographs of the earth taken from outer space at annual intervals for the last decades. This data would be most useful to analyse which of the following? o

Human movement during crises

o

Migration patterns of large whales

o

Weather patterns during hurricanes

o

Deforestation in the rainforest

22. Identify the pathway of blood trough the components of the cardiovascular system, starting with the blood entering the heart through the superior vena cava. (move the options into the box on the right, placing them in the selected order. use all options) o

Pulmonary artery

o

Lungs

o

Right atrium

o

Right ventricle

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o

Pulmonary valve

23. Which of the following body systems develop from the same origin tissue as lungs?

o

Genitourinary system

o

Musculoskeletal system

o

Neuromuscular system

o

Gastrointestinal

24. A scientist predicts that germinating beans will use more oxygen than nongerminating beans. This prediction is referred to as which of the following?

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o

A conclusion

o

An observation

o

A hypothesis

o

Date collection

25. Which of the following processes causes most of the carbon dioxide from the blood to move into alveoli?

26.

o

Active transport using energy

o

Diffusion down a concentration gradient

o

Conversion to carbon monoxide

o

Passive transport using carrier proteins

Which of the following is a property of water?

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o

Water is made up of one molecule of hydrogen and two molecules of oxygen

o

Water dissolves polar ionic compounds

o

Water requires less heat than ethanol to raise its temperature

o

Solid water is denser than liquid water.

27. Which of the following elements has the smallest atomic radius

o

o

C

o

Sn

o

Si

Ge

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28. Which of the following pancreatic secretions digests starch into disaccharides?

o

Trypsin

o

Chymotrypsin

o

Amylase

o

lipase

29. Which of the following units is used to indicate mass?

o

Cm3

o

Irm

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o

Mg

o

Ml

30.30.

31. Histones are proteins associated with which of the following?

o

Blood

o

Sperm cells

o

Hair follicles

o

DNA

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32. When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is the formula for the salt? o

KCO3

o

K2CO3

o

K3CO2

o

K(CO3)2

33. A researcher is gathering large amounts of data about patients who have a common disease and the effectiveness of various medications in comparison to a placebo.

Which of the following types of graphs is the best way for the researcher to present the data? o

Bar graph

o

Line graph

o

Pie chart

o

Flow chart

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34. Which of the following describes why water has a concave, or downward-curving meniscus when poured in a glass beaker? o

Glass has a higher density than water

o

Water has a higher density than glass

o

The adhesive forces with the glass are greater than the cohesive forces

o

The cohesive forces with the glass are greater than tha adhesive forces.

35. Which of the following statements correctly describes the change in coat coloring of an arctic for from brown in summer to white in winter?

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o

The fox’s phenotype changes, but the genotype does not

o

The fox’s genotype changes, but the phenotype does not

o

Both the phenotype and genotype of the fox change

o

Neither the phenotype nor the genotype of the fox change.

36. Which of the following best describes adaptive immunity?

o

The body’s barrier defences, such as mucous membranes and secretions

o

The initiation of internal defences, such as phagocytes and natural killer cells

o

The initiation of the inflammatory response

o

A response to specific traits of specific pathogens.

37. If a portion of a strand of DNA bases reads 5’AGCTAGCGT 3’. What would the sequence of bases on the complementary strand read? o

3’TCGATCGCA5’

o 5’TCGUTCGU3’ o

5’UCGAUCGCA3’

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o

3’AGCTAGCGT5’

38. Which of the following is a function of a catalyst?

o

To increase the activation energy of a reaction

o

To increase the rate of reaction

o

To convert a nonspontaneous reaction to a spontaneous reaction

o

To increase the product yield

39. Which of the following describes the process by which solid carbon dioxide (dry ice) turns directly into carbon dioxide gas? o

Sublimation

o

Deposition

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o

Condensation

o

Evaporation

40. Which of the following occurs during inhalation?

o

Air moves from areas of low pressure to areas of high pressure

o

The diaphragm moves downwards

o

The ribcage lowers

o

The volume of the thoracic cavity decreases

41. Which of the following body cavities is subdivided into the thoracic and abdominopelvic cavities? o

Dorsal

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o

Cranial

o

Ventral

o

Vertebral

42. Which of the following layers of kin contains glands and hair follicles?

o

Stratum lucidum

o

Dermis

o

Hypodermis

o

Stratum corneum

43. Which of the following structures is present in both prokaryotic and eukaryotic cells?

o

Endoplasmic reticulum

o

Chloroplast

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o

Cell membrane

o

Golgi apparatus

44. Which of the following is true if Koch’s postulates are met regarding a disease?

o

The disease is caused by a microorganism

o

The disease is hereditary

o

The disease is the result of a dietary deficiency

o

The disease is non-infectious.

45. Which of the following is a part of pulmonary circuit?

o

Superior vena cava

o

Pulmonary vein

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o

Bronchial artery

o

Aorta

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ATI TEAS 7 Practice Questions and Answers.

1) Chemical bonding – a. Uses electrons that are closest to the nucleus of the atoms bonding b. Always uses electrons from only of the atoms involved c. Uses all the electrons in all atoms involved d. Uses the valence electrons of all the atoms involved

2)

Which of the following would have the most dramatic effect in changing the reaction rate? a. Decreasing the temperature by two-fold b. Increasing the pressure by two-fold c. Decreasing the activation energy by three-fold d. Decreasing the concentration of reactants by two-fold

3)

Group one in the periodic table has

valence electrons and is

reactive than Group two.

a. Zero; more b. Zero; less c. One; less d. One; more

4)

Enzymes are created from amino acid chains. As such, what might prevent the action of an enzyme? a. A pH close to 7 b. A high temperature c. The lack of hydrogen ions in solution d. A lack of ATP in the cell

5)

If a scientists want to determine the rate at which an enzyme works, what could he or she measure? a. The rate at which the enzyme is degraded

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b. The rate at which the product disappears c. The rate at which the reactants disappear d. The rate at which the products appears

6)

The rate of a chemical reaction depends on all of the following except a. Surface area b. Temperature c. Presence of catalysts d. Amount of mass lost

7)

Which of the answer choices provided best defines the following statement?

For a given mass and constant temperature, an inverse relationship exists between the volume and pressure of a gas? a. Boyle’s Law b. Ideal Gas Law c. Charles’ Law d. Stefan-Boltzmann Law

8)

Prokaryotic and eukaryotic cells are similar in having which of the following? a. Integral membrane proteins in the plasma membrane b. Presence of a nucleus c. Membrane-bound organelles d. Protein-studded DNA

9)

Blood cells that are responsible for transportation of oxygen are called a. Leukocytes b. Thrombocytes c. Erythrocytes d. Plasma cells

10)

What is another name for the Adam’s Apple? a. Vocal box b. Thyroid cartilage c. Cricoid cartilage d. Hyoid bone .Contact us via perfectstudyfiles@gmail.com

11)

When exhaling, the diaphragm a. Relaxes b. Contracts c. Moves down and in d. Stays in the same position

12) Which of the following correctly lists the cellular hierarchy from the simplest to most complex structure? a. Tissue, cell, organ, organ system, organism b. Organism, organ system, organ, tissue, cell c. Organ system, organism, organ, tissue, cell d. Cell, tissue, organ, organ system, organism

13)

If a cell is placed in a hypertonic solution, what will happen to the cell? a. It does not affect the cell b. It will swill c. It will stay the same d. It will shrink

Hypertonic solution is a solution with a higher particle concentration and lower water content outside the cell. Water moves from the cell to the solution, losing water and shrinking.

14)

What is the longest phase of the cell cycle? a. Cytokinesis b. Interphase c. Metaphase d. Mitosis

15)

B = alleles for brown eyes; g = alleles for green eyes B

g

B

Bg

Bg

g

Bg

gg

What word describes the allele for green eyes? a. Heterozygous .Contact us via perfectstudyfiles@gmail.com

b. Dominant c. Recessive d. Homozygous i. Recessive alleles are represented by lower case letters

16)

What is the possibility that the offspring produces will have brown eyes? a. 100% b. 25% c. 75% d. 50%

17)

What are groups of cells that perform the same function? a. Molecules b. Organs c. Plastids d. Tissues

18)

When does the nuclear division of somatic cells take place during cellular respiration? a. Mitosis b. Interphase c. Meiosis d. Cytokinesis i. Nuclear division of somatic cells takes place during mitosis

19)

Which group of major parts and organs make up the immune system? a. Lymphatic system, spleen, tonsils, thymus, and bone marrow b. Nose, trachea, bronchial tubes, lungs, alveolus, and diaphragm c. Brain, spinal cord, and nerve cells d. Heart, veins, arteries, and capillaries

20)

What is the role of ribosomes? a. Waste removal b. Make proteins c. Storage d. Transport .Contact us via perfectstudyfiles@gmail.com

21)

Which of the following is an example of a tissue? a. Mammal b. Xylem c. Liver d. Hamstring

22)

The adrenal glands are part of the a. Emphatic system b. Respiratory system c. Endocrine system d. Immune system

23)

Which of the following is exchanged between two or more atoms that undergo ionic bonding? a. Transitory electrons b. Electrical charges c. Neutrons d. Valence electrons

24)

Blood is prevented from changing direction in the veins by a. Pressure generated from the heart b. Valves c. Vacuum generated from the heart d. Squeezing at the vein by nearby skeletal muscle

25)

The liquid part of the blood is called a. Plasma b. Blood fluid c. Serous fluid d. Serum

26)

Which of the following is true regarding the periodic table? a. Groups have the same number of valence electrons and similar chemical properties b. Periods are vertical columns c. Atomic radius increases as you go from left to right d. Alkali metals are frequently found by themselves in nature .Contact us via perfectstudyfiles@gmail.com

27)

A double bond between two atoms, for example the double bond between oxygen in O2 has how many electrons? a. 2 b. 4 c. 6 d. 8

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28)

What is the anterior bone of the lower leg? a. Ulna b. Fibula c. Tibia d. Radius

29)

Assuming every variable unmentioned in the Ideal Gas Law remains constant, which is true? a. As the temperature increases, the pressure of a gas must decrease b. As the number of molecules in a gas increases, the temperature must increase c. As volume increases, the number of molecules must increase d. As pressure increases, volume must increase

30)

The humerus and ulna form the a. Shoulder joint b. Elbow joint c. Wrist joint d. Knee joint

31)

The patella is also called the a. Breastbone b. Kneecap c. Finger bone d. Funny bone

32)

The bone that is stationary during movement is called the a. Insertion b. Agonist c. Origin d. Antagonist

33)

Which of the following is the process that produces a liquid fro a gas? a. Vaporization b. Condensation c. Sublimation d. Denitrification

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34)

What is the primary function of the quadriceps muscle? a. Extend the knee joint b. Flex the knee joint c. Extend the hip joint d. Flew the hip joint

35)

Which part of the brain is responsible for higher brain functions? a. The pons b. The cerebral cortex c. The cerebellar cortex d. Medulla

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36)

How many thoracic spinal nerves are there in the human body? a. 8 b. 9 c. 12 d. 14

37)

Which of the following is not a specialized sense? a. Touch b. Balance c. Sight d. Hearing

38)

In which region of the small intestine are most of the nutrients absorbed? a. The jejunum b. The ileum c. The duodenum d. The colon

39)

Which type of nutrient is broken down by trypsin? a. Protein b. Fat c. Sugar d. Carbohydrates

40)

According to the graph below, which is the most effective enzyme?

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a. A b. B c. C d. D

41)

What is true of elements found in the same group (column) in the Periodic Table? a. They have the same atomic mass b. They have the same level of reactivity c. They have the same number of protons d. They have the same number of valence electrons

42)

Compounds that are acidic will be able to lower the pH of a solution by doing which of the following? a. Accepting H+ ions b. Releasing H+ ions c. Binding with acidic species in solution d. Reducing oxidation species in solution

43)

Which of the following elements is the most electronegative? a. Chlorine b. Iron c. Magnesium d. Silicon

44)

According to Newton’s first law, how fast will a 10-kilogram object accelerate when pushed with 50 Newtons of force? a. 2.5 m/s2 b. 5.0 m/s2 c. 8.0 m/s2 d. 15.0 m/s2

45)

Upon touching a chair cushion and then a metal plate, John notices that the metal plate feels much .Contact us via perfectstudyfiles@gmail.com

colder than the cushion, although the surrounding air temperature is the same. What is an explanation for this? a. The chair cushion has a higher heat capacity than the metal plate

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b. The metal plate has a higher heat transfer rate than the chair cushion c. The metal plate is able to absorb more heat from the air than the cushion d. The chair cushion produces some internal heat

46)

If a pitcher throws a baseball into the air, and notices that it takes 5 seconds to reach its peak, how long will the baseball need to fall back to the ground? Neglect air resistance. a. 2.5 seconds b. 9.8 seconds c. 5.0 seconds d. 10.0 seconds

47)

Which of the following is true regarding DNA in the human body? a. DNA is used as an energy source b. DNA is used as a template for creation of proteins c. Each sperm has forty-six chromosomes d. DNA is made of amino acids

48)

How many kingdoms of life are there? a. 3 b. 6 c. 7 d. 9

49)

Alleles for brown eyes (B) are dominant over alleles for blue eyes (b). Assume both parent have brown eyes, but have one allele each of both B and b. What is the percent chance that their offspring have brown eyes? a. 100 b. 75 c. 66 d. 50

50)

Plants absorb carbon dioxide (CO2) to create sugar for energy. What is the primary byproduct of this process? a. Oxygen b. Nitrogen c. Carbon monoxide .Contact us via perfectstudyfiles@gmail.com

d. Carbon

51)

What prevents ultraviolet radiation produced by the sun from damaging life on earth? a. Ozone layer b. Greenhouse gases c. The vacuum between earth and sun d. The water layer

52)

Which of the following is not present in an animal cell? a. Nucleus b. Mitochondria c. Cytoplasm

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d. Cell wall

53)

Mitosis is the process of cell division to create new cells. What is the process of cell division required to create new sex cells, or gametes? a. Telosis b. Meiosis c. Kinesis d. Phoresis

54)

What are the two main parts of the human body’s central nervous system? a. The heart and spinal cord b. The brain and spinal cord c. The peripheral nerves and the brain d. The spinal cord and the peripheral nerves

55)

Which of the following is not an organ system in humans? a. Endocrine system b. Respiratory system c. Vascular system d. Muscular system

56)

Humans can turn glucose into ATP, the basic energy molecule in the body. What is a byproduct of this process? a. Carbon dioxide b. Oxygen c. Nitrogen d. Phosphorus

57)

Which of the following does NOT correctly match the part of the cell and its primary function? a. Mitochondria: production of ATP through oxidative phosphorylation b. Nucleus: DNA replication and transcription c. Smooth endoplasmic reticulum: translation of mRNA into proteins d. Golgi apparatus: packaging and transportation of proteins within and in/out of cells

58)

What is the primary difference between a cell membrane and a cell wall? a. A cell membrane is flexible and a cell wall is rigid .Contact us via perfectstudyfiles@gmail.com

b. A cell membrane is not found in plants whereas a cell wall is c. A cell membrane is not found in animals, whereas a cell wall is d. A cell membrane is composed of protein, whereas a cell wall is composed of sugar

59)

What skill is a scientist using when he or she observes the ways in which different mammals climb trees? a. Drawing conclusions b. Interpreting data c. Making observations d. Making a hypothesis

60)

When conducting an experiment, the factor that is being measured is called what? a. Independent variable b. Dependent variable c. Conclusion

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d. Controlled variable i. Dependent variable = variable being measured

61)

Which of the following questions is the best high-level scientific question? a. Who is credited with inventing the electromagnet? b. How many penguins live in Antarctica? c. Is the boiling or freezing point of water affected by how much salt is in it? d. When did dinosaurs become extinct?

62)

What is the correct order of the steps in the scientific method? a. Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results b. Make a hypothesis, test the hypothesis, analyze results, ask a question, draw conclusions, communicate results c. Ask a question, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results d. Ask a question, make a hypothesis, test the hypothesis, draw conclusions, analyze results, communicate results

63)

When determining the mass of an ant, you should use – a. Meters b. Grams c. Liters d. Kilograms

64)

Which of the following cellular processes does not use ATP? a. Facilitated diffusion b. DNA replication c. Active transport through the cell membrane d. Movement of the mot complex in a flagellum

65)

Hemophilia is a hereditary genetic disorder that prevents blood from clotting correctly. The allele for hemophilia is recessive and carried on the X chromosome. A couple has two sons, one who has hemophilia and one who does not. What can be said about the genotype of the couple? a. The mother is an asymptomatic carrier of the disorder b. The father is an asymptomatic carrier of the disorder .Contact us via perfectstudyfiles@gmail.com

c. The mother does not carry the gene for the disorder d. The father does not carry the gene for the disorder

66)

Which of the following would most likely decrease the efficiency of the C3 pathway but not of the C4 pathway? a. An increase in available sunlight b. An increase in atmospheric oxygen c. An increase in temperature d. An increase in available water

67)

Over a period of several hundred years, a glacier melts and is transformed into a lake populated by many species of birds, algae, and other aquatic organisms. Later, the lake slowly dries up and becomes a valley, where grasses and shrubs predominantly grow.

This passage describes which of the following ecological processes?

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a. Convergence b. Succession c. Adaption d. Evolution

68)

A scientist discovers a new species of snail that lives in the ocean. He tested the ability of this species to handle heat by measuring its growth rate as he increased the temperature of the water. He also tested two different concentrations of salt to determine which type of marine environment the snail would be best suited for.

In the experiment described above, what is the dependent variable? a. Salt concentration b. Temperature c. Growth rate d. Number of snails

69)

When measuring blood pressure, the numbers represent: a. The systolic and diastolic pressures, respectively b. The diastolic and systolic pressures, respectively c. The pressure in the arteries and the veins, respectively d. The pressure in the veins and arteries respectively

70)

The Superior vena cava – a. Ascends from the right atrium b. Ascends from the left atrium c. Descends from the right atrium d. Ascends from the left ventricle

71)

A scientist has isolated Fe (III), a variant of iron that has a charge of 3+. Which of the following compounds could be created from this element? a. FeO b. FeCl c. FeCa2 d. Fe2O3

72)

What is the VSEPR structure of a PO4 (phosphate) molecule? a. Tetrahedral .Contact us via perfectstudyfiles@gmail.com

b. Octahedral c. Linear d. Trigonal bi-planar

73)

The rectum is a part of – a. The anus b. The large intestine c. The small intestine d. The genitourinary system

74)

Where does digestion start? a. The stomach b. The small intestine c. The mouth d. The esophagus

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75)

The large intestine’s primary function is to – a. Absorb water b. Digest food c. Move the food from the esophagus to the small intestine d. Absorb nutrients

76)

What type of reaction is the following?

CaCl2 + 2NaOH -> Ca(OH)2 + 2NaCl

a. Single replacement b. Double replacement c. Synthesis d. Acid-base

77)

What are the products of the following reaction?

NaOH + HCl ->

a. Dihydrogen monoxide and sodium chloride b. Sodium hydride and chlorohydroxide c. Hydrochloride and sodium monohydroxide d. Sodium chloride and sodium hydroxide

78)

In the following chemical reaction, what is the correct stoichiometric coefficient for silicon dioxide?

4Si + 2O2 -> Si + SiO2

a. 1 b. 2 c. 3 d. 4

79)

When you notice that a chemical reaction equation is not balanced, which of the following can be performed to balance the equation? a. Change the formula of the products b. Change the subscripts of the molecular formulas c. Change the coefficients of the reactants or products .Contact us via perfectstudyfiles@gmail.com

d. Change the reaction type

80)

A scientist places mercury oxide (HgO) into a sealed chamber and heats it to 400C, causing a reaction to occur. When she opens the chamber, she notices liquid mercury has formed as well as oxygen gas.

This reaction is an – a. Endothermic synthesis reaction b. Exothermic combustion reaction c. Endothermic decomposition reaction d. Exothermic replacement reaction

81)

What is the name of the process that happens in the red bone marrow? a. Hematopoiesis b. Bone fusing c. Calcification d. Meiosis

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82)

The vertebral column protects the – a. Brain b. Heart c. Spinal column d. Peripheral nerves

83)

Which unit of measurement is NOT used in the International System of Units? a. Centimeters b. Milliliters c. Grams d. Inches

84)

A conclusion reached on the basis of evidence and reason is a/an – a. Theory b. Conclusion c. Inference d. Hypothesis

85)

Plants are autotrophs, meaning that they – a. Consume organic material produced by animals b. Produce their own food c. Are able to move by themselves d. Can automatically transform from a seed into a plant

86)

Which of the following is not true of a virus a. Viruses have DNA or RNA b. Viruses do not have a nucleus c. Viruses cannot survive without water d. Viruses can be infectious

87)

In the digestive system, the majority of nutrients are absorbed in the – a. Esophagus b. Stomach c. Small intestine d. Large intestine

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88)

How many pairs of human chromosomes exist? a. 17 b. 22 c. 23 d. 46

89)

Animals engaging in a symbiotic relationship will do which of the following? a. Help each other survive b. Take one another’s food c. Attack one another d. Eat each other

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90)

What are motor units made of? a. Motor neurons b. Muscle cells c. Tendons d. Bones

91)

What is the name of a state of constant muscle contraction caused by rapid successive nerve signals? a. Tetanus b. Muscle tone c. Temporal summation d. Hypotony

92)

Which of the following can be found in abundance in a fatigued muscle? a. Glucose b. Lactic acid c. ATP d. HCO3-

93)

Which of the following produces a gas from a solid? a. Melting b. Plasmification c. Condensation d. Sublimation

94)

A student isolates a substance, and succeeds in purifying it. She then puts it into the lab refrigerator, at 4C. When she comes back the next day, she notices that it has solidified! Which of the following should be true about the substance? a. It has a melting point below 4C b. It has a boiling point less than that of water c. It has a freezing point higher than that of water d. It has a vaporization point at around 90C

95)

The specific heat of water is 1 calorie/gram X C. How much energy is needed to heat 2 kg of water from 20C to its boiling point? a. 80 calories b. 160 calories .Contact us via perfectstudyfiles@gmail.com

c. 200 kilocalories d. 160 kilocalories

96)

In science, an educated guess is called a/an a. Observation b. Question c. Conclusion d. Hypothesis

97)

In an experiment, what do you call the variable that is changed? a. Controlled variable b. Dependent variable c. Independent variable d. Experimental variable

98)

What organ system contains your skin?

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a. The respiratory system b. The epithelial system c. The lymphatic system d. The integumentary system

99)

If a gene is expressed, then that means that: a. It is influencing a phenotype trait b. It is being copied into another set of DNA c. It will be passed on from mother to son d. The gene will produce some hormones

100) Which of the following structures is found in eukaryotes but not in prokaryotes? a. Cell wall b. Flagella c. Nuclear membrane d. Ribosomes

101) Which of the following is NOT a kind of genetic mutation? a. Missense mutation b. Nonsense mutation c. Frameshift mutation d. Uncover mutation

102) Which of the following does NOT correctly match the endocrine system organ with its function? a. Hypothalamus: regulation of pituitary gland b. Pancreas: control of blood sugar through production of insulin and glucagon c. Testes: testosterone and estradiol d. Pituitary: production and regulation of cortisol, adrenaline, and melatonin

103) Which part of the PNS is accountable for the fight or flight reaction? a. The parasympathetic b. The sympathetic c. The ENS d. Afferent nerves

104) People who suffer from Type 1 diabetes are lacking function in which organ? .Contact us via perfectstudyfiles@gmail.com

a. Liver b. Pancreas c. Stomach d. Heart

105) One of the primary differences between fungi and plants is that: a. Fungi can produce their own food and plants cannot b. Plants have chlorophyll and fungi do not c. Fungi are able to grow without water and plants cannot d. Fungi and plants have no major differences 106) Which is TRUE – a. Deoxygenated blood enters the left atrium

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b. Deoxygenated blood leaves the right ventricle c. Oxygenated blood enters the right atrium d. Deoxygenated blood leaves the left ventricle

107) In our atmosphere, nitrogen is the most common element, and makes up approximately what percentage? a. 25% b. 51% c. 65% d. 78%

108) Why is it ill advised for patients to have surgery while on aspirin? a. It increases the likelihood of bleeding due to weakening of small vessels b. It decreases respiratory rate c. It increases bleeding time by interfering with normal platelet function d. It causes increased clotting which can lead to increased bleeding and stroke

109) Which of the following is correct regarding an aqueous substance? a. It is soluble in water b. It is very reactive c. It is soluble in hydrocarbon d. It is able to dissolve most other compounds 110) In order for work to be performed, a force has to be – a. Applied to an object b. Applied to a surface c. Applied to a moving object d. Applied over a distance to an object

111) According to electron theory, what is the maximum number of bonds a carbon atom can have? a. 2 b. 3 c. 4 d. 5

112) If a rowboat weighs 50 kilograms, how much water needs to be displaced in order for the boat to float? .Contact us via perfectstudyfiles@gmail.com

a. 25 liters b. 50 liters c. 100 liters d. 500 liters

113) Where are the cilia found? a. Smaller bronchioles b. In the alveoli c. In the trachea d. Sperm 114) The tidal volume is the amount of air moved during – a. Deep breathing b. Shallow breathing c. Coughing

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d. None of the above

115) A ball with a mass of 0.5 kg is moving at 10 m/s. How much kinetic energy does it have? a. 15 joules b. 25 joules c. 50 joules d. 55.5 joules 116) The temperature at which all molecular motion stops is – a. -460C b. -273K c. 0K d. 0C

117) A particular species of ladybug feeds exclusively on red flowers. During this process, the ladybugs pollinate the flowers and also mate. Over time, a mutation appears in the plant population that result in yellow flowers. Some of the ladybugs start to pollinate and mate on the yellow flowers. Eventually, the ladybugs that feed on red flowers and those that feed on yellow flowers can no longer mate with one another. What is the most likely explanation for this occurrence? a. Allopatric speciation driven by geographic isolation b. Sympatric speciation driven by behavioral isolation c. Allopatric speciation driven by natural selection d. Sympatric speciation driven by habitat differentiation

118) In a certain species of rose, color is determined by a single allele. The dominant allele, R, produces red flowers, and the recessive allele, r, produces white flowers. A scientist crosses a red rose with another red rose to produce the F1 generation of offspring. He then randomly selects two of the F1 generation and crosses them, resulting in the F2 generation. All of the F1 generation had red flowers. The F2 generation consisted of 75% red roses and 25% white roses.

What were the genotypes of the two roses in the parent generation? a. RR and rr b. Rr and Rr c. RR and Rr d. There is not information to determine the genotype

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119) In humans, which organ is not part of the endocrine system? a. The stomach b. The pancreas c. The hypothalamus d. The pineal gland

120) A scientist believes that a particular species of algae, S. sponferus, is able to grow even when living deep underwater. However, he hypothesizes that this species may grow more slowly than algae in other environments due to the lack of sunlight at this depth. Which of the following findings would not support the scientist’s hypothesis? a. Many other species of algae are able to live at depths of 1000 meters under the surface of the water

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b. Laboratory experiments show that S. sponferus grows equally well under a wide range of light conditions c. S. sponferus is found growing in abundance on the ocean’s surface d. Some species of algae are discovered that do not need much light to grow

121) A man is on an airplane with a cabin pressure of 0.95 atm and a temperature of 22C. He empties a flexible 0.5L bottle and puts the cap back on. When he disembarks at the airport, where the pressure is 1 atm and the temperature is 24C, what will happen to the volume of his empty bottle? a. It will increase b. It will decrease c. It will remain the same d. There is not enough information to determine what will happen

122) Which vitamin is synthesized within the human body? a.

Vitamin E

b.

Vitamin A

c. Vitamin D d. Vitamin C

123) Trypsinogen, an enzyme secreted by the pancreas, is activated into trypsin in the duodenum by which enzyme? a. Pepsin b. Protease c. Hydrochloric acid d. Enterokinase

124) Follicle-stimulating hormone (FSH), which is responsible for maturation of follicles in the ovary, is produced by which gland in the body? a. Posterior lobe of pituitary gland b. Corpus luteum c. Anterior lobe of pituitary gland d. Ovary

125) In a chemical reaction: sulfuric acid + substance X = salt + water + carbon dioxide. What could substance X be? .Contact us via perfectstudyfiles@gmail.com

a. Sodium carbonate b. Magnesium hydroxide c. Copper (II) oxide d. Potassium 126) A ball is tired to a pole with a rope and is moving in a circle with constant speed. Which of these statements about the ball is true? a. Force is acting away from the center of circle b. Force is acting at a tangent to the circle c. There is no acceleration d. There is force acting toward the center of circle

127) Which of these make up a molecule of fat? a. Three molecules of fatty acid and one molecule of glycerol b. One carbon, one hydrogen, and one oxygen molecule c. Three molecules of glycerol and one molecule of fatty acid

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d. One glycerol molecule and three stearic acid molecules

128) Enzymes are

that work best at

pH or temperature.

a. Inorganic catalysts, maximum b. Biological catalysts, optimum c. Chemical substance, moderate d. Organic catalysts, minimum

129) Which of these statements regarding the process of fermentation is true? a. It is an example of an aerobic process where yeast acts on a sugar solution to produce oxygen and alcohol. b. It is an example of an anaerobic process where yeast acts on a sugar solution to produce carbon dioxide and alcohol. c. It is an example of tissue respiration where yeast acts on carbohydrates to produce oxygen and alcohol. d. It is an example of an anaerobic process where bacteria act on a protein solution to produce carbon dioxide and alcohol.

130) Which of these statements regarding the “oxygen debt” created during heavy exercise is true? a. Oxygen debt is created due to build-up of lactic acid in the muscles, which needs a high level of carbon dioxide to be oxidized. b. Oxygen debt is created due to build-up of lactic acid in the liver, which needs a high level of oxygen to be stored. c. Oxygen debt is created due to build-up of lactic acid in the muscles, which needs a high level of oxygen to be oxidized. d. Oxygen debt is created due to build-up of acetic acid in the muscles, which needs a high level of oxygen to be oxidized.

131) Which of these statements regarding facilitated diffusion across a cell membrane is true? a. It is a kind of passive transport (i.e., does not use energy such as hydrolysis of ATP) that does not require transmembrane/carrier proteins. b. It is a kind of active transport (e.g., ATP hydrolysis) that requires protein pumps. c. It is a kind of active transport (e.g., ATP hydrolysis) that requires transmembrane/carrier proteins. d. It is a kind of passive transport (i.e., does not use energy such as hydrolysis of ATP) that requires transmembrane/carrier proteins. .Contact us via perfectstudyfiles@gmail.com

132) Phalanges are bones present in which parts of the body? a. Cranium/skull b. Fingers only c. Ears d. Fingers and toes

133) Which statement regarding ball and socket joints is true? a. Ball and socket joints are multi-axial joints, which are highly mobile, allowing movement in multiple axes and planes. b. Ball and socket joints are uni-axial joints, which are highly mobile, allowing rotation around a central axis. c. Ball and socket joints are bi-axial joints, which are mobile, allowing movement in two planes

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d. Ball and socket joints are uni-axial joints, which are mobile, allowing movement in a single axis and plane.

134) Ball and socket joints, pivot joints, plane joints, and hinge joints are which types of joints? a. Ball and socket and pivot joints are synovial joints. Plane and hinge joints are cartilaginous joints b. All of them are synovial joints. c. Ball and socket joints are synovial joints. The rest are fibrous joints. d. All of them are cartilaginous joints.

135) Cardiac muscles exhibit which of these features? a. Unstriated, involuntary, intercalated discs present b. Striated, involuntary, intercalated discs not present c. Striated, voluntary, intercalated discs present d. Striated, involuntary, intercalated discs present

136) Fill in the blank: The hepatic portal vein carries

,

blood from the

to the

.

a. Deoxygenated, nutrient-poor, liver, intestines b. Deoxygenated, nutrient-rich, liver, stomach c. Oxygenated, nutrient-rich, intestines, liver d. Deoxygenated, nutrient-rich, intestines, liver

137) On each side of the body, the brachiocephalic veins are formed by the union of which two veins? a. External jugular and internal jugular veins b. External jugular veins and subclavian veins c. Common carotid and subclavian veins d. Internal jugular veins and subclavian veins

138) Large lymphatic trunks unite to form which two main vessels of the lymphatic system? a. Right lymphatic duct and thoracic duct b. Left lymphatic duct and thoracic duct c. Right lymphatic duct and left subclavian vein d. Thoracic duct and superior vena cava

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139) Which of these is not a lymphoid organ? (Organs that produce lymphocytes) a. Thymus b. Liver c. Spleen d. Tonsils

140) Which of these is not a part of the central nervous system? a. Cranial nerves b. Spinal cord c. Brain d. Tract (bundle of nerve fibers/axons)

141) Which structure is not considered a part of the rib cage? a. Sternum b. Costal cartilage

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c. Thoracic vertebrae d. Lumbar vertebrae

142) Which of these is known as the pacemaker of the heart? a. AV node b. Cardiac plexus (nerve fibers) c. SA node d. Muscle fibers of the atria

143) Which valve is found between the left atrium and left ventricle? a. Pulmonary valve b. Aortic valve c. Mitral valve d. Tricuspid valve

144) Which layer of the skin contains hair follicles, sweat glands, and nerves? a. Dermis (middle layer) b. Epidermis (top layer) c. Basal layer d. Subcutaneous layer

145) Which element is essential for the normal production of the hormone thyroxine? a. Magnesium b. Phosphorus c. Calcium and Vitamin D d. Iodine

146) Vitamin A, also known as

, is a

vitamin. Its deficiency can lead to

a. Retinol, fat-soluble, night blindness b. Calciferol, fat-soluble, osteoporosis c. Ascorbic acid, water-soluble, night blindness d. Retinol, water-soluble, osteoporosis

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.

147) Which of these is an example of protein-related malnutrition? a. Scurvy – Vitamin C deficiency b. Anemia – Iron deficiency c. Rickets – Vitamin D, calcium, or phosphorus deficiency d. Kwashiorkor – protein deficiency

148) Food moves in the gastrointestinal tract by which of these processes? a. Peristalsis of the voluntary muscles b. Peristalsis of the longitudinal muscles only c. Peristalsis of the circular and longitudinal muscles d. Voluntary waves of contraction

149) What is the function of amylase in the body? a. It breaks down starch into simpler sugars. b. It breaks down fat into fatty acids.

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c. It breaks down proteins into amino acids. d. It breaks down fat into glycerol.

150) Which of these statements regarding the gastrointestinal tract is false? a. Villi contain lacteals for the absorption of fats. b. The large intestine secretes no enzymes. c. Villi present in the large intestine absorb water and mineral salts. d. The ileum absorbs B12 and bile salts.

151) What is the life span and breakdown product of red blood cells? a. 6 months, ammonia b. 2 months, biliverdin c. 4 months, bilirubin d. 1 year oxyhemoglobulin

152) Maturation and development of T cells takes place in which region? a. Bone marrow (production) b. Thymus gland c. Lymph nodes d. Spleen

153) Which of these statements is false regarding blood cells? a. Mature red blood cells are oval, bi-concave discs with a lifespan of 120 days. b. Mature red blood cells are bi-concave discs that have a central nucleus and long life span. c. White blood cells are larger and less abundant than red blood cells. d. Phagocytes and lymphocytes are the most numerous types of white blood cells.

154) During inhalation, what changes occur in the diaphragm? a. The diaphragm muscles contract or tighten and move upward. b. The diaphragm muscles relax, making it dome-shaped. c.

The diaphragm muscles contract or tighten and the diaphragm moves downward.

d. The abdominal muscles contract, making the diaphragm move upward.

Diaphragm moves down and contracts during inhalation due to thoracic volume increasing and pressure decreasing. Air moves in due to low thoracic pressure in the lungs Diaphragm moves up and relaxes during exhalation due to thoracic volume decreasing and .Contact us via perfectstudyfiles@gmail.com

pressure increasing. Air moves out due to high thoracic pressure in the lungs.

155) The volume of air that remains present in the lungs, even after forceful expiration/exhalation, is called and is about

liters.

a. Residual volume, 0.5 liters b. Tidal volume, 2.4 liters c. Vital volume, 2 liters d. Residual volume, 1.2 liters

156) Which pyrimidine base is only found in RNA? a. Uracil (Thymine in DNA) b. Cytosine c. Adenine d. Guanine

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157) Spinal muscular atrophy (SMA) is an autosomal recessive disorder. Knowing this information, what are the chances that a child will not have the recessive allele if both of his parents are carriers? a. 25% b. 100% c. 0% d. 50%

158) If someone is lying belly down, their positioning is said to be what? a. Prone (belly-down) b. Supine (face up) c. Posterior (refers to the back of something) d. Lateral (lying on your side)

159) Which of these statements is true for boiling, but not true for evaporation? a. It takes place at a specific temperature. b.

The warmer the liquid is, the faster the process.

c.

The larger the surface area of liquid, the faster the process.

d.

Gas forms at the surface of the liquid.

160) How does an impurity affect the melting point and boiling point of a substance? a. Impurity raises the boiling point and raises the melting point. b.

Impurity lowers the boiling point and raises the melting point.

c. Impurity raises the boiling point and lowers the melting point. d. Impurity lowers the boiling point and lowers the melting point.

161) Which of these statements regarding isotopes is not true? a. Radio-isotopes are isotopes with unstable nuclei that emit radiations. b. Isotopes are atoms of the same element with different mass numbers. c. Isotopes of an element have the same chemical and physical properties. (differ in physical properties, such as density) d. Isotopes have the same number of protons and electrons in each atom, but a different number of neutrons in their nucleus.

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162) Which of these patterns of the periodic table is not correct? a. In non-metallic groups, reactivity decreases down a group. b. Densities and melting points increase down any group. c. Atomic size increases down a group and across a period (from left to right). (atomic size/radius does increase down a group, but decreases across a period ) d. In metallic groups, reactivity increases down a group.

163) Simple covalent compounds show which of the following properties? a. They are crystalline solids at room temperature. b. They conduct electricity when molten or dissolved in water. c. They are soluble in organic solvents e.g. ethanol. d. They have high melting and boiling points.

164) The law of conservation of mass states that

.

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a. The total mass of all products of a chemical reaction is more than the total mass of all the reactants. b. The total mass of all products of a chemical reaction is equal to the total mass of all the reactants. c. The total mass of all products of a chemical reaction is independent of the total mass of all the reactants. They are not related. d. The total mass of all products of a chemical reaction is less than the total mass of all the reactants, because some mass coverts to energy during reaction.

165) What happens when a piece of zinc is placed in a copper (II) sulphate solution? a. Zinc displaces copper (II) sulphate solution. The original blue color of the solution persists b. Sulphur dioxide is liberated c. No reaction occurs because zinc is less reactive metal than copper d. Zinc displaces copper from copper (II) sulphate

Zinc is a more reactive metal than copper. It displaces copper from its solution and red-brown deposit of copper forms on the zinc. The original blue color of the solution fades.

166) Which of these statements is correct? a. A reducing agent removes oxygen from, or removes electrons to, another substance. b. A reducing reagent either adds oxygen to, or removes electrons from, another substance. c. An oxidizing agent removes oxygen or electrons from other substances. d. An oxidizing agent either adds oxygen to, or removes electrons from, other substances.

167) What causes a moving body to resist a change in its state of motion? a. Inertia b. Momentum c. Speed d. Acceleration

168) A change in the gravitational field affects which property of a body? a. Temperature b. Weight (weight = m*g) c. Volume d. Mass

169) Which of these groups of physical quantities consists only of scalars? .Contact us via perfectstudyfiles@gmail.com

a. Mass, velocity, acceleration b. Speed, weight, acceleration c. Time, velocity, force d. Mass, speed, time

Scalar quantities have magnitude but no direction. Vector quantities have magnitude and direction. Time, speed, and mass are scalar, whereas force, acceleration, and velocity are vector.

170) A body mass 30 kg is traveling in space at a speed of 10 m/s. Given that the formula for kinetic energy is KE = 0.5 * m * v^2, and m is mass, v is speed of an object, what is the KE? a. 120 J b. 1500 J c. 4600 J d. 100 J

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171) A man of mass 60 kg, runs up the stairs of total height 5 meters in 4 seconds. How much power does the man exert? a. 750 W b. 250 W c. 1000 W d. 800 W

weight = mass * gravity -> w=60*10 = 600N power = work/time -> p= (600*5)/4 = 750N

172) Which of these represents the correct order of some of the main energy changes that take place in a coal-fired power station? a. Kinetic, heat, electrical, chemical b. Chemical, heat, kinetic, electrical c. Chemical, electrical, heat, kinetic d. Heat, chemical, kinetic, electrical

the chemical energy stored in coal is converted to the heat energy of water, which then converts to the kinetic energy of steam, which goes on to convert to electrical energy

173) A large amount of energy is produced in the center of the sun by which phenomenon? a. Chemical reaction b. Nuclear fission c. Radioactive decay d. Nuclear fusion

174) Balance the following chemical equation by filling in the coefficients that should go in the blanks: Na +

H20 -> _ NaOH + H2

a. 2Na + H20 -> 3NaOH + H2 b. 2Na + 2H20 -> 4NaOH + H2 c. 2Na + 2H20 -> 2NaOH + H2 d. 3Na + 2H20 -> 3NaOh + H2

175) Which of these organs is made up of epithelial tissue? a. Skin .Contact us via perfectstudyfiles@gmail.com

b. Brain c. Heart d. Liver

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176) The diagram shows four varieties of one type of tissue. Name the type of tissue and four varieties

a. Connective; adipose, cardiac, transitional, bone b. Connective; adipose, blood, areolar, bone c. Epithelial; transitional, stratified, columnar, cuboidal d. Nervous, grey matter, white matter, dendritic, ganglion

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ATI TEAS 7 Science Questions with Answers 1. Which of the following structures in the male reproductive system secretes a fluid that nourishes and protects sperm?

A) Urethra B) Prostate gland C) Vas deferens D) Epididymis

2. Which of the following parts of the central nervous system releases chemicals that regulate the pituitary gland?

A) Cerebellum B) Hypothalamus C) Spinal cord D) Thalamus

3. Which of the following body systems is the primary system involved in preventing an infection when a cut in the skin allows bacteria to enter the body ?

A) The immune system B) The endocrine system C) The excretory system D) The circulatory system

4. Which of the following skin layers contains dead cells?

A) Papillary layer B) Stratum basale C) Stratum corneum D) Reticular layer Contact us via perfectstudyfiles@gmail.com

5. Which of the following statements describes how bile salts aid during digestion?

A) Decrease the size of starches to aid in digestion B) Increase the size of fat droplets to aid in digestion C) Increase the size of starches to aid in digestion D) Decrease the size of fat droplets to aid in digestion

6. When experimental results seem to only partly support a hypothesis, a researcher should consider which of the following?

A) Formulating a scientific law B) Manipulating the data C) Exploring alternative explanations D) Accounting for other researchers ' biases

7. Which of the following stem cells can differentiate into the largest number of different cell types?

A) Somatic B) Unipotent C) Oligopotent D) Pluripotent

8. Scientists rely on which of the following to provide critical feedback when revising scientific explanation?

A) Peer review B) Null hypothesis C) Dogma Contact us via perfectstudyfiles@gmail.com

D) Opinion

9. Which of the following organs releases bicarbonate as response to the release of secretin by the duodenum?

A) Gallbladder B) Spleen C) Pancreas D) Liver

10. emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions ?

A) Releasing histamine and acetylcholine B) Producing enzymes C) Absorbing food D) Exchanging oxygen and carbon dioxide

11. Which of the following properties of water explains its solvent abilities for certain substances?

A) High surface tension B) Kinetic energy of liquid water molecules C) High specific heat D) Polarity of water molecules

12. Which of the following pathways best represents the expected flow of blood from the human heart to an organ?

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A) Blood pumped from the heart first enters arterioles that then merge to form arteries that deliver blood to the organ B) Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries of the organ C) Blood pumped from the heart first enters veins that then narrow to form venules that deliver blood to arteries of the organ D) Blood pumped from the heart first enters arteries that then narrow to form veins that deliver blood to the organ

13. Using the equation pH= - log [H+], a solution with a [H+] = 10^9 M has a pH of which of the following?

A) 1 B) 5 C) 10 D) 9

14. Which of the following types of bonds link base pair nucleotides within a double strand of DNA? A) Covalent B) Peptide C) Ionic D) Hydrogen

15. Metabolism is known as which of the following types of respiration?

A) Pulmonary B) External C) Cellular D) Internal

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16. Which of the following regions of the body are the tibia and fibula?

A) Tarsal B) Antecubital C) Crural D) Coxal

17. Which of the following digestive system structures releases sodium bicarbonate into the small intestine, resulting in a change in the pH of chyme from acidic to basic?

A) Gallbladder B) Pancreas C) Liver D) Appendix

18. A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis?

A) There is a net flow of water into the cell B) The net flow of water into and out of the cell is zero .

C) There is no flow of water.

D) There is a net flow of water out of the cell.

19. Which of the following elements has the smallest atomic radius?

A) Si B) C C) Ge D) Sn

20. An efficient way to block protein synthesis is by inhibiting which of the following?

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A) Ribosomes B) Glyoxysomes C) Apoplasts D) Lysosomes

21. A student conducts an experiment in which he dissolves 1.0 grams () each of several substances in 50 millimeters (mL) of water. He has 12 identical plastic cups of water. He places 1.0 g of salt into three of the cups,1.0 g of sugar into three of the cups, and 1.0 g of baking soda into three of the cups. The three remaining cups contain only water. He places all the cups in a freezer and records the temperature of the water in each cup every 15 minutes for 4 hours .

Which of the following questions is the student most likely investigating?

A) How does the volume of water affect the rate at which it cools ?

B) What effect does cooling have on the solubility of different solutes ?

C) How is the cooling rate of water affected by different solutes ?

D) What effect do different concentrations of solute have on the freezing point of water ?

22. In a plant in which fuzzy leaves (F) are dominant smooth leaves (f), which of following crosses will produce only offspring with smooth leaves?

A) FF X FF B) Ff X Ff C) ff X ff D) Ff X ff

23. Which of the following is a function of the circulatory system?

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A) To manufacture antibodies B) To break down toxins C) To produce insulin D) To transport hormones

24. In a double circulation system, which of the following describes a possible pathway of blood flow through the pulmonary circulatory system?

A) Oxygenated blood flows toward the heart from the lungs.

B) Deoxygenated blood flows from organs and tissues of the body to the heart.

C) Oxygenated blood flows throughout the body .

D) Deoxygenated blood flows from the lungs to the heart

25. A doctor explains that a patient has pulled a muscle in his back. Which of the following could injured in a patient's back?

A) Latissimus dorsi B) Zygomaticus C) Adductor magnus D) Gastrocnemius

26. Which of the following hormones increases the heart rate in response to stress?

A) Epinephrine B) Insulin C) Testosterone D) Glutamate

27. Histones are proteins associated with which of the following?

A) Sperm cells Contact us via perfectstudyfiles@gmail.com

B) DNA C) Hair follicles D) Blood

28. Which of the following cellular organelles releases the energy contained in food?

A) Golgi apparatus B) Mitochondria C) Ribosomes D) Centrioles

29. Which of the following describes a process that occurs along the proximal tubules of a nephron?

A) Glucose , lactate , and amino acids are reabsorbed .

B) Toxins in the filtrate are detoxified .

C) Urea is actively reabsorbed .

D) Altered filtrate leaves the urinary system and the body .

30. Which of the following is a function of the integumentary system?

A) Storage of fat B) Release of minerals C) Production of antibodies D) Absorption of water

31. A study found two processes , Process A and Process B, to be correlated . Which of the following is true for these processes ?

A) The study cannot indicate whether Process A and B have a negative relationship.

B) The study indicates that Process A causes Process B. C) The study does not indicate a causal relationship between the processes .

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D) The study cannot indicate whether Process A and B have a positive relationship

32. Which of the following types of cells suppress immune responses ?

A) Regulatory T-cells B) Neutrophils C) Plasma cells D) Macrophages

33. Which of the following are the two major parts of the nervous system ?

A) Autonomic nervous system and central nervous system B) Peripheral nervous system and somatic nervous system C) Autonomic nervous system and somatic nervous system D) Peripheral nervous system and central nervous system

34. Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formations ammonia?

A) Urea B) Lysozymes C) Sebum D) Water

35. A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an over a 2-month period , all with illumination at 1 meter distance from plants grown with the same soil and watering conditions .

3 Arabidopsis plants exposed to ultraviolet light (UV) 3 Arabidopsis plants exposed to infrared light (IR) 3 Arabidopsis plants exposed to white light Contact us via perfectstudyfiles@gmail.com

At the end of the experiment , she finds that the IR treated plants are scorched , the UV treated plants have , the plants are growing normally .

Which of the following statements is most likely to be correct ?

A) Three plants do not provide sufficient replications to draw a conclusion .

B) Infrared light contains more energy than the other wavelengths .

C) Wavelength of light is the only variable that has been changed between groups D) The wavelength of light does not affect photosynthesis .

36. Which of the following hormones is responsible for regulating sodium reabsorption in the kidneys?

A) Thyroxine B) Erythropoietin C) Calcitriol D) Aldosterone

37. How many times stronger is the hydrogen-ion concentration of a pH 4 solution as compared with a pH 9 solution?

A) 5 B) 100,000 C) 0.000001 D) 50

38. Which of the following describes the order of events in which bone heal?

A) A hematoma form — bony callus forms—a fibrocartilage callus forms—bone remodeling occurs B) A bony callus forms — hematoma forms — a fibrocartilage callus forms — bone remodeling occurs Contact us via perfectstudyfiles@gmail.com

C) A hematoma forms — a fibrocartilage callus forms — a bony callus forms — bone remodeling occurs D) A fibrocartilage callus forms — hematoma forms - bone remodeling occurs — a bony callus forms

39. Which of the following types of cells are most similar in function to cytotoxic T-cells?

A) Antigen -presenting cells B) B cells C) Dendritic cells D) Natural killer cells

40. Which of the following organs filters excess solutes from the blood?

A) Kidney B) Gallbladder C) Spleen D) Stomach

41. Ice cubes are placed in a glass of water to cool water. The cooling effect the ice cubes on the water is due to the heat being transferred in which of the following ways?

A) From the ice to the water by conduction B) From the water to the ice by conduction C) From the water to the ice by radiation D) From the ice to the water by radiation

42. Which of the following describes the function of a neuron ?

A) Stores potassium ions B) Produces electrolytes C) Creates electrical impulses Contact us via perfectstudyfiles@gmail.com

D) Transmits sensory information

43. Sunlight can damage epithelial cells of the skins, but limited exposure to ultraviolet radiation results in the beneficial production of which of the Following?

A) Vitamin D B) Vitamin B C) Vitamin K D) Vitamin A

44. Which of the following body systems breaks down proteins into amino acids?

A) Excretory B) Endocrine C) Circulatory D) Digestive

45. Which of the following occurs during inhalation?

A) The diaphragm moves downward .

B) The volume of the thoracic cavity decreases .

C) Air moves from areas of low pressure to areas of high pressure .

D) The ribcage lowers .

46. The process by which gametes combine to form a zygote is called which of the following?

A) Mitosis B) Meiosis C) Fertilization D) Parthenogenesis

47. Which of the following types of membrane is associated with the skin ?

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A) Serous B) Synovial C) Cutaneous D) Peritoneum

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TEAS 7 SCIENCE 93.6% 1. Carbon has an atomic number of 6. Which of the following is true about isotope C-12 C-12 possesses 6 neutrons and 6 protons in its nucleus C-12 possesses 7 neutrons and 5 electrons in its nucleus C-12 possesses 7 protons and 5 neutrons in its nucleus C-12 possesses 6 protons and 6 electrons in its nucleus 2. Which of the following best describes adaptive immunity? o The body’s barrier defences, such as mucous membranes and secretions o The initiation of internal defences, such as phagocytes and natural killer cells o The initiation of the inflammatory response o A response to specific traits of specific pathogens.

3. Which of the following describes why water has a concave, or downward-curving meniscus when poured in a glass beaker? o Glass has a higher density than water o Water has a higher density than glass o The adhesive forces with the glass are greater than the cohesive forces o The cohesive forces with the glass are greater than the adhesive forces.

4. The following diagram summaries the carbonic acid-bicarbonate ion buffer system of the blood CO2+H2O H2CO3  HCO3- +H+ Which of the following equations shows the reaction that takes place when there are excessive H+ ions?

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o H2CO3  CO2 + H2O o HCO3- + H+  H2CO3 o

CO2 + H2O  H2CO3

o H2CO3  HCO3- +H+

5. A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2 month period, all with illumination at 1 meter distance from plants grown with the same sol and watering conditions 3 Arabidopsis plant exposed to ultraviolet light (UV) 3 Arabidopsis plants exposed to infrared light (IR) 3 Arabidopsis plants exposed to white light At the end of the experiment, she finds that the IR treated plants are scorched, the UV treated plants have wilted, but the white light created plants are growing normally.

Which of the following statements is most likely to be correct? o Three plants do not produce sufficient replications to draw a conclusion o Wavelength of lights the only variable that has been changed between groups o The wavelength of light does not affect photosynthesis o Infracted light contains more energy than the other wavelengths.

6. Which of the following is a property of water? o Water is made up of one molecule of hydrogen and two molecules of oxygen Contact us via perfectstudyfiles@gmail.com

o Water dissolves polar iconic compounds o Water requires less heat than ethanol to raise its temperature o Solid water is more dense than liquid water 7. Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity? o Nonspecific o Innate o Transplantation o Active 8. Which of the following is an example of active transport? o Aquaporins in kidney cells that help concentrate urine o Movement of substance from an area of high concentration to an area of low concentration o Movement of a sodium and potassium across the cell membrane against their CONCENTRATION GRADIENT. o Loss of water from a cell in a hypertonic solution 9. Which of the following body cavities is subdivided into the thoracic and abdominopelvic cavities? o Dorsal o Cranial o Ventral o Vertebral 10. Mutations in which of the following types of cells can be inherited by offspring? o Ovarian o endocrine

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o neural o muscle 11. Which of the following pancreatic secretions digests starch into disaccharides o Trypsin o Chymotrypsin o Amylase o lipase 12. A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis? o There is no flow of water o The net flow of water into and out of the cell is zero o There is a net flow of water out of the cell o There is a net flow of water into the cell 13. When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is the formula for the salt? o KCO3 o K2CO3 o K3CO2 o K(CO3)2 14. Which of the following elements has the smallest atomic radius o Ge o C o Sn o Si

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15. Which of the following structures is a flap of cartilage that prevents the movement of food into the trachea? o Glottis o Pharynx o Epiglottis o Larynx 16. Which of the following structures is present in both prokaryotic and eukaryotic cells? o Endoplasmic reticulum o Chloroplast o Cell membrane o Golgi apparatus 17. Which of the following is a part of pulmonary circuit o Superior vena cava o Pulmonary vein o Bronchial artery o Aorta 18. Carbohydrates are composed of which of the following? o Nucleic acids o Monosaccharides o Isoprenoids o Amino acids 19. Histones are proteins associated with which of the following? o Blood o Sperm cells o Hair follicles

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o DNA 20. Which of the following layers of skin contains glands and hair follicles o Hypodermis o Stratum corneum o Stratum lucidum o Dermis 21. Which of the following describes the function of tendons? o Tendons attach skeletal muscles to bones o Tendons attach two bones o Tendons attach bones to ligaments o Tendons attach skeletal muscles to ligaments 22. Which of the following actions does a hydrophilic hormone take to activate a target cell o The hormone binds to cell-surface receptors of the target cells o The hormone binds to a cytosolic receptor in the target cell o The hormone enters a target cell through a transport protein o The hormone passes through the plasma membrane of the target cell.

23. Which of the following is a weakness of a correlational study? o Cannot be replicated o Cannot determine causation o Inability to control independent variables o Too many variables to control 24. During muscle contraction, myosin is directly responsible for which of the following? o Initiating an action potential along the sarcolemma o Forming cross bridges with actin molecules

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o Binding to troponin molecules o Releasing calcium from sarcoplasmic reticulum 25. Which of the following vessels is responsible for carrying blood from the upper body to the right atrium of the heart? o Pulmonary veins o Aorta o Pulmonary arteries o Superior vena cava How many times larger is the volume of a cube that is 4 mm on all sides compared to the volume of a cube that is 2 mm on all sides (round the answer to the nearest whole number). 8 = 43 divided by 23 26. Which of the following statements correctly describes the change in coat colouring of an arctic for from brown in summer to white in winter? o The fox’s phenotype changes, but the genotype does not o The fox’s genotype changes, but the phenotype does not o Both the phenotype and genotype of the fox change o Neither the phenotype nor the genotype of the fox change 27. Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis o Nervous tissue o Muscle tissue o Bone tissue o Connective tissue

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28. The shortening of a sarcomere in skeletal muscle is directly due to the interactional of which of the following? o Acetylcholine and acetylcholinesterase o Pepsin and pepsinogen o Myosin and actin o Dynein and kinesin

29. Which of the following terms describes the removal of metabolic waste from the body? o Secretion o catabolism o anabolism o excretion 30. Which of the following substances is excreted by sweet glands in response to the breakdown of protein and the formation of ammonia? o Lysoymes o Water o Urea o Sebum 31. Identify the pathway of blood trough the components of the cardiovascular system, starting with the blood entering the heart through the superior vena cava. (select options in the correct order. use all options) Homework – study how blood moves in and out of the heart and answer this one. o Pulmonary artery

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o Lungs o Right atrium o Right ventricle o Pulmonary valve 32. A vasectomy is a procedure in which the vas deferens are cut. Which of the following describes why a vasectomy leads to infertility? o The vasectomy block the movement of sperm from the prostate gland to the bulbourethral gland o The vasectomy blocks the movement of sperm from the epididymis into urethra o The vasectomy blocks the movement of sperm from the ejaculatory duct into the bulbourethral glad o The vasectomy blocks movement of sperm from a testis into the epididymis 33. Which of the following occurs during inhalation? o Air moves from areas of low pressure to areas of high pressure o The diaphragm moves downwards o The ribcage lowers o The volume of the thoracic cavity decreases 34. A scientist predicts that germinating beans will use more oxygen than nongerminating beans. This prediction is referred to as which of the following? o A conclusion o An observation o A hypothesis o Date collection

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35. Which of the following describes the process by which solid carbon dioxide (dry ice) turns directly into carbon dioxide gas? o Sublimation o Deposition o Condensation o Evaporation 36. An equal mass of which of the following states of matter could completely fill either a 100 ml or 500 ml container? o Gas o Solid o Mixture o Liquid 37. Which of the following parts of the central ne vous system releases chemicals that regulate the pituitary gland? o Hypothalamus o Cerebellum o Thalamus o Spinal cord Contact simon@courseworkpros.com for help taking the TEAS 7 test, HESI A2 exam, writing essays, or completing school assignments.

38. Which of the following allows the AIDS virus, which contains RNA to insert viral DNA into the DNA of a host T-cells after the AIDS virus enters the cells o Receptor proteins located on the surface of the virus o Reverse transcriptase, an enzyme encoded by the virus o The phospholipids found on the envelope of the virus

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o The protein that makes up the capsid of the virus 39. If a portion of a strand of DNA bases reads 5’AGCTAGCGT 3’. What would the sequence of bases on the complementary strand read? o 3’TCGATCGCA5’ o 5’TCGUTCGU3’ o 5’UCGAUCGCA3’ o 3’AGCTAGCGT5’ 40. Which of the following processes causes most of the carbon dioxide from the blood to move into alveoli o Active transport using energy o Diffusion down a concentration gradient o Conversion to carbon monoxide o Passive transport using carr er proteins 41. Which of the following units is used to indicate mass? o Cm3 o Irm o Mg o Ml 42. Which of the following body systems develop from the same origin tissue as lungs? o Genitourinary system o Musculoskeletal system o Neuromuscular system o Gastrointestinal 43. A researcher is gathering large amounts of data about patients who have a common disease and the effectiveness of various medications in comparison to a placebo.

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Which of the following types of graphs is the best way for the researcher to present the data? o Bar graph o Line graph o Pie chart o Flow chart 44. A researcher collects high-resolution photographs of the earth taken from outer space at annual intervals for the last decades. This data would be most useful to analyse which of the following? o Human movement during crises o Migration patterns of large whales o Weather patterns during hurricanes o Deforestation in the rainfores

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