Dentistry Preparation
Pre-Test Questions
Course Introduction
Dentistry Preparation is a foundational course designed to equip prospective dental students with the essential knowledge and skills required for advanced dental studies. The course covers fundamental topics such as human oral anatomy, dental terminology, basic microbiology, and principles of oral hygiene. Students participate in hands-on exercises to develop manual dexterity and gain familiarity with dental instruments and procedures. Emphasis is also placed on ethical considerations, patient communication, and the roles and responsibilities of dental professionals. This course serves as a comprehensive introduction, ensuring students are well-prepared for the rigors of dental school and future clinical training.
Recommended Textbook
Human Physiology 14th Edition by Stuart Ira Fox Dr
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20 Chapters
2890 Verified Questions
2890 Flashcards
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Chapter 1: The Study of Body Function
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118 Verified Questions
118 Flashcards
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Sample Questions
Q1) The primary structural protein of basement membranes is
A)keratin.
B)collagen
C)melanin.
D)myosin.
Answer: B
Q2) If blood glucose levels decrease from normal,which of the following changes takes place to bring glucose levels back to normal?
A)increase in insulin - increase in glucagon
B)increase in insulin - decrease in glucagon
C)decrease in insulin - increase in glucagon
D)decrease in insulin - decrease in glucagon
Answer: C
Q3) What kind of connections allow epithelial cells to form strong membranes?
A)basement membranes
B)intercalated discs
C)junctional complexes
D)keratinized
Answer: C
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Chapter 2: Chemical Composition of the Body
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Sample Questions
Q1) Sucrose is a disaccharide that is composed of _______________ and ____________.
A)glucose,glucose
B)glucose,galactose
C)glucose,fructose
D)fructose,galactose
Answer: C
Q2) Most of the water found in the body is in the A)blood.
B)intracellular fluid compartment.
C)extracellular fluid compartment.
D)blood and extracellular fluid compartment.
Answer: B
Q3) The formation of hydration spheres makes an ion or molecule soluble in water.
A)True
B)False
Answer: True
Q4) Which reaction represents a dehydration synthesis reaction?
A)Reaction A
B)Reaction B
Answer: A
4
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Chapter 3: Cell Structure and Genetic Control
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147 Flashcards
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Sample Questions
Q1) A codon codes for a(an) A)mRNA.
B)fatty acid.
C)carbohydrate.
D)amino aciD.
Answer: D
Q2) Pre-mRNA contains noncoding regions called A)exons.
B)introns.
C)small nuclear ribonucleoproteins (snRNPs).
D)spliceosomes.
Answer: B
Q3) The plasma membrane is referred to as a mosaic because of the presence of A)stationary proteins in a uniform arrangement. B)carbohydrates in changing patterns.
C)phospholipids that are in constant motion.
D)moving proteins in a random arrangement.
Answer: D
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5
Chapter 4: Enzymes and Energy
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Sample Questions
Q1) A ______________ is the amount of heat required to raise the temperature of one cubic centimeter of water one degree on the Celsius scale.
A)specific heat
B)meter
C)boiling point
D)calorie
Q2) Abnormally high concentration of the BB form of creatine phosphokinase is associated with a myocardial infarction.
A)True
B)False
Q3) The MM isoenzyme of creatine phosphokinase is found in diseased skeletal muscle.
A)True
B)False
Q4) The vitalist concept was defeated because of fermentation experiments involving A)yeast.
B)bacteria.
C)amoebae.
D)paramecia.
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Chapter 5: Cell Respiration and Metabolism
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106 Flashcards
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Sample Questions
Q1) In the formation of acetic acid from pyruvic acid,the oxygen in the carbon dioxide comes from oxygen gas.
A)True
B)False
Q2) The process in which an amine group is transferred from one amino acid to another is called
A)deamination.
B)beta-oxidation.
C)phosphorylation.
D)transamination.
Q3) Each turn of the citric acid cycle directly produces ______________ molecule(s)of ATP.
A)one
B)two
C)four
D)no
Q4) The citric acid cycle completes the oxidation of glucose started by glycolysis.
A)True
B)False
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Chapter 6: Interactions Between Cells and the Extracellular Environment
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Sample Questions
Q1) The ATPase enzyme
A)adds a P<sub>i</sub> to ADP.
B)powers endocytosis.
C)couples Na<sup>+</sup> to glucose.
D)hydrolyzes ATP into ADP and P<sub>i</sub>.
Q2) Solutes that cannot freely pass through a membrane are said to be A)hypertonic.
B)osmotically inactive.
C)osmotically active.
D)selectively permeable.
Q3) Osmosis and simple diffusion do NOT require the actions of carrier proteins. A)True
B)False
Q4) Poisoning the Na<sup>+</sup>/K<sup>+</sup> pump would
A)generate a more negative membrane potential.
B)increase cellular permeability to Na<sup>+</sup>.
C)inhibit secondary active transport.
D)increase cellular permeability to K<sup>+</sup>.
Page 8
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Chapter 7: The Nervous System: Neurons and Synapses
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190 Verified Questions
190 Flashcards
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Sample Questions
Q1) Blocking ____________ channels would prevent neuron depolarization.
A)K<sup>+</sup>
B)Cl<sup>-</sup>
C)Na<sup>+</sup>
D)Mg<sup>2+</sup>
Q2) The normal effect of F1F1F1S1 F1F1F10-endorphin can be blocked by A)curare.
B)naloxone.
C)muscarine.
D)nicotine
Q3) Both long-term potentiation and long-term depression requires release of ___ from the postsynaptic neuron membrane.
A)Cl<sup>-</sup>
B)K<sup>+</sup>
C)Ca<sup>2+</sup>
D)Mg<sup>2+</sup>
Q4) Animals that cannot synthesize neuropeptide Y would be prone to seizures.
A)True
B)False
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Chapter 8: The Central Nervous System
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160 Flashcards
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Sample Questions
Q1) A reflex arc requires intervention from the brain for a response.
A)True
B)False
Q2) An electroencephalogram obtained from an adult who is thinking would probably display
A)many alpha waves.
B)many beta waves.
C)many delta waves.
D)many theta waves.
Q3) Visual inputs are interpreted on the occipital lobe of the cerebral cortex.
A)True
B)False
Q4) Which of the following is NOT a function of the hypothalamus?
A)controls hunger and thirst
B)controls reactions to odors
C)controls body temperature
D)controls the autonomic nervous system
Q5) Destruction of the superior colliculi would impact an individual's hearing.
A)True
B)False
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Chapter 9: The Autonomic Nervous System
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Sample Questions
Q1) Ablation of the celiac ganglia would inhibit sympathetic regulation of the adrenal glands.
A)True
B)False
Q2) Cutaneous effectors such as blood vessels,sweat glands,and errector pili muscles are innervated by
A)only parasympathetic nerves.
B)only sympathetic nerves.
C)both parasympathetic and sympathetic nerves.
D)both parasympathetic and somatic nerves.
Q3) Parasympathetic stimulation increases the rate of passage of material in the small intestine.
A)True
B)False
Q4) Muscarinic antagonists stimulate _____________ pupillary diameter.
A)increased
B)decreased
C)no change in
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Chapter 10: Sensory Physiology
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Sample Questions
Q1) Which of the following is NOT a type of cortical visual neuron?
A)simple
B)compound
C)complex
D)hypercomplex
Q2) Which cells have the ability to re-isomerize the all-trans retinal back to the 11-cis form?
A)photoreceptor cells
B)ganglion cells
C)pigment epithelial cells
D)bipolar cells
Q3) The softest sound which could be heard would have an intensity of
A)0 decibels.
B)0.1 decibels.
C)1 decibel.
D)10 decibels.
Q4) Nociceptors relay sensory information to the cortex via the lateral spinothalamic tract.
A)True
B)False
Page 12
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Chapter 11: Endocrine Glands: Secretion and Action of Hormones
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157 Flashcards
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Sample Questions
Q1) Which of the following is NOT an action of cortisol secretion?
A)stimulates gluconeogenesis
B)lowers blood levels of free fatty acids
C)promotes lipolysis
D)inhibits glucose utilization
Q2) Pituitary dwarfism is caused by growth years hyposecretion of growth hormone.
A)True
B)False
Q3) What is the protein found in the colloid of a thyroid follicle?
A)thyroglobulin
B)gammaglobulin
C)iodoglobulin
D)betaglobulin
Q4) The anterior pituitary gland is also called the neurohypophysis.
A)True
B)False
Q5) Protein synthesis is usually stimulated when luteinizing hormone binds to its receptor.
A)True
B)False
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Chapter 12: Muscle: Mechanisms of Contraction and Neural Control
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Sample Questions
Q1) Muscles which move a limb away the midline of the body are termed as A)abductor muscles.
B)adductor muscles.
C)extensor muscles.
D)flexor muscles.
Q2) What protein primarily makes up the thin filament?
A)actin
B)myosin
C)titin
D)Z-discs
Q3) A reserve of high energy phosphate is stored in muscle as A)phosphocreatine.
B)adenosine triphosphate.
C)glucose 6-phosphate.
D)creatine kinase.
Q4) Exceeding the VO<sub>2max</sub> will result in lactate production by the muscle.
A)True
B)False
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Chapter 13: Blood,Heart and Circulation
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Sample Questions
Q1) Systole refers to the ______ of the heart.
A)relaxation
B)filling
C)contraction
D)blood flow
Q2) Receptors for LDLs are called
A)foam cells.
B)apolipoproteins.
C)atheromas.
D)lactate dehydrogenase.
Q3) How does the circulatory system provide protection for the body?
A)prevents blood loss through clotting
B)leukocytes fight infection
C)provides the body's immunity
D)All apply
Q4) Which blood globulin is an antibody that helps fight infection?
A)alpha globulin
B)beta globulin
C)gamma globulin
D)None apply
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Chapter 14: Cardiac Output,Blood Flow,and Blood Pressure
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Sample Questions
Q1) Increased blood flow to an organ is induced by decreased tissue H<sup>+</sup> concentrations.
A)True
B)False
Q2) During exercise all of the following occur EXCEPT
A)deeper breathing.
B)increased cardiac output.
C)increased oncotic pressure.
D)visceral vasoconstriction.
Q3) During maximal exercise,the skeletal muscles can receive as much as ____ of the total blood flow.
A)35%
B)45%
C)65%
D)85%
Q4) The sounds heard during the first phase of blood-pressure measurement are A)murmurs.
B)snapping sounds.
C)thumping sounds.
D)muffled thumping sounds.
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Chapter 15: The Immune System
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137 Flashcards
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Sample Questions
Q1) Which cell combats vitally infected cells,transplants,and cancer cells?
A)B lymphocyte
B)T lymphocyte
Q2) Fevers increase neutrophil activity and interferon production.
A)True
B)False
Q3) Beta interferon is now being used to treat hepatitis B and C.
A)True
B)False
Q4) Both innate and adaptive immunity processes are necessary for local inflammation to function properly.
A)True
B)False
Q5) It would take too many genes for us to inherit all of our mechanisms to fight pathogens.
A)True B)False
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Chapter 16: Respiratory Physiology
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164 Flashcards
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Sample Questions
Q1) What drug that is used as a treatment for asthma,promotes bronchodilation by selectively stimulating beta<sub>2</sub>-adrenergic receptors?
A)Singular
B)Albuterol
C)Terbutaline
D)Epinephrine
Q2) Obstructive pulmonary diseases often cause the FEV<sub>1</sub> to be decreased by __________ or more.
A)0%
B)5%
C)10%
D)20%
Q3) Peripheral chemoreceptors that can detect changes in blood pH are located in the A)medulla oblongatA.
B)aortic and carotid bodies.
C)pons. D)lungs.
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Chapter 17: Physiology of the Kidneys
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152 Flashcards
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Sample Questions
Q1) Renal clearance of PAH __________ glomerular filtration rate.
A)is equal to B)exceeds
C)is less than
Q2) The apical membranes of the tubular cells are impermeable to bicarbonate.
A)True
B)False
Q3) The average glomerular filtration rate is equal to A)180 L/day.
B)5.5 L/min.
C)100 mmHg/hour.
D)8 mg/hour.
Q4) Due to the action of aldosterone,water is reabsorbed because A)sodium is excreted in the urine.
B)potassium is reabsorbed into peritubular blood.
C)sodium is reabsorbed into peritubular blood.
D)aldosterone opens aquapores.
Q5) Renal insufficiency often results from dialysis.
A)True
B)False
Page 19
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Chapter 18: The Digestive System
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172 Flashcards
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Sample Questions
Q1) Which of the following motility processes is NOT correctly matched to its description?
A)peristalsis - rhythmic,wave-like contractions
B)mastication - removal of wastes
C)ingestion - taking food into the mouth
D)deglutition - swallowing
Q2) Functions of the digestive system include all of the following EXCEPT
A)deglutition.
B)hormone secretion.
C)absorption.
D)hormone degradation.
Q3) Derivatives of ________ give feces a brown color.
A)urobilinogen
B)bilirubin
C)cholesterol
D)guanylin
Q4) Digestion of starch starts in the stomach.
A)True
B)False
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Chapter 19: Regulation and Metabolism
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Sample Questions
Q1) Children with kwashiorkor have low growth rates and low levels of IGF-1.
A)True
B)False
Q2) Which of the following is NOT an enzymatic protection against oxidative stress?
A)catalase
B)superoxide dismutase
C)alpha-tocopherol
D)glutathioneperoxidase
Q3) If an unsaturated fatty acid chain is 22 carbons long and the first of three double bonds is at the fifth carbon from the methyl end,it would be an
A)omega-5 fatty acid.
B)omega-22 fatty acid.
C)omega-3 fatty acid.
D)omega-16 fatty aciD.
Q4) Individuals consuming diets containing omega-3 fatty acids are less likely to develop cardiovascular disease.
A)True
B)False
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21
Chapter 20: Reproduction
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Sample Questions
Q1) Women who are thin,athletic,and under prolonged stress which leads to inadequate GnRH release may experience cessation of menstruation or A)dysmenorrheA.
B)menorrhea.
C)metrorrhea.
D)functional amenorrhea.
Q2) How many sperm are produced from one spermatogonium?
A)one
B)two
C)four
D)eight
Q3) How many autosomal chromosomes are present in human cells?
A)23 pair
B)46
C)22 pair
D)2 pair
Q4) Inhibition of the decidual reaction would prevent placental formation.
A)True
B)False
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