Mastering GATE XL Life Sciences ISSUU

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Authors:

GATEXL(LifeSciences)MockTestModel

SectionA:GeneralAptitude(GA)

Marks:15(5x1Mark,5x2Marks)

Q1(1Mark-MCQ)

Selectthewordthatfitstheanalogy:

Ornithologist:Birds::Anthropologist:

A)Fossils

B)Animals

C)Humankind

D)Culture

Q2(1Mark-MCQ)

Theaverageoffivenumbersis18.Ifonenumberisexcluded,the averagebecomes16.Whatistheexcludednumber?

A)22

B)26

C)30

D)24

Q.3(1Mark-MCQ)

Choosethemostappropriatewordfromtheoptionsgivenbelowto completethefollowingsentence:

She hernewrolewithconfidenceandenthusiasm.

A)embraced

B)evaded

C)eroded

D)enabled

Q.4(1Mark-MCQ)

Aclockshows6:15.IfthehourhandpointsEast,inwhatdirection doestheminutehandpoint?

A)West

B)North-East

C)South-West

D)North-West

Q5(1Mark-NAT)

Whatisthesimpleintereston₹8000for3yearsat5%per annum?(Answerin₹)

Q.6(2Marks-MCQ)

AcertainsumofmoneyisdividedamongA,B,andCsuchthatA getstwiceasmuchasB,andBgetstwiceasmuchasC.IfA,B, andCtogetherhave₹2450,howmuchdoesBhave?

A)₹350

B)₹700

C)₹1400

D)₹490

Q.7(2Marks-MCQ)

Giventhefollowingstatements:

(i)Allcatsareanimals

(ii)Someanimalsarepets.

Whichofthefollowingconclusionslogicallyfollowsfromthegiven statements?

A)Allcatsarepets.

B)Somecatsarepets.

C)Somepetsareanimals

D)Allpetsareanimals

Q.8(2Marks-MSQ)

Whichofthefollowingnumbersareprimenumbers?

A)51

B)73

C)87

D)97

SectionB:Chemistry(XL-P)-Compulsory

Marks:25(5x1Mark,10x2Marks)

Q1(1Mark-MCQ)

Whichofthefollowingisanexampleofanaromaticcompound?

A)Cyclohexane

B)Benzene

C)Glucose

D)Ethanol

Q2(1Mark-MCQ)

WhatisthepHofa10$^{-4}$MHClsolution?

A)10

B)4

C)7

D)14

Q3(1Mark-MCQ)

Whichofthefollowingelementsisatransitionmetal?

A)Calcium(Ca)

B)Sodium(Na)

C)Iron(Fe)

D)Sulfur(S)

Q.4(1Mark-NAT)

HowmanygramsofNaOH(molecularweight=40g/mol)are requiredtoprepare500mLofa0.1Msolution?(Answerupto twodecimalplaces)

Q.5(1Mark-MSQ)

Whichofthefollowingarepropertiesofcovalentbonds?

A)Involvesharingofelectrons.

B)Typicallyoccurbetweennon-metals

C)Resultinformationofions

D)Canbepolarornon-polar.

Q.6(2Marks-MCQ)

Thestandardelectrodepotential(E0)forthereductionofAg+to Agis+0.80V.ForthereactionAg(s)→Ag+(aq)+e,thestandard potentialis:

A)+080V

B)-0.80V

C)0.00V

D)+1.60V

Q.7(2Marks-MSQ)

WhichofthefollowingstatementsareTRUEregardingan exothermicreaction?

A)Theenthalpychange(ΔH)isnegative.

B)Heatisabsorbedfromthesurroundings.

C)Theproductshavehigherenergythanthereactants.

D)Thereactionreleasesheattothesurroundings.

Q.8(2Marks-NAT)

Calculatethemolecularweightofglucose(C6H12O6)ifthe atomicweightsareC=12,H=1,O=16.(Answering/mol)

Q.9(2Marks-MCQ)

Whichofthefollowinganalyticaltechniquesisprimarilyusedfor theseparationofcomponentsbasedontheircharge-to-massratio?

A)Chromatography

B)Spectrophotometry

C)MassSpectrometry

D)Electrophoresis

Q.10(2Marks-MSQ)

Identifythecorrectstatementsregardinganidealgas:

A)Thevolumeoccupiedbythegasmoleculesisnegligible.

B)Therearestrongintermolecularforcesbetweengasmolecules

C)Collisionsbetweengasmoleculesareperfectlyelastic

D)Theaveragekineticenergyofgasmoleculesisdirectly proportionaltoabsolutetemperature.

SectionC:SubjectSpecificSection(XL-T:Zoology)

Marks:60(25x1Mark,15x2Marks)

Q.1(1Mark-MCQ)

Whichofthefollowingphylaischaracterizedbythepresenceof choanocytes?

A)Cnidaria

B)Porifera

C)Platyhelminthes

D)Annelida

Q.2(1Mark-MCQ)

Theprimaryfunctionofnephronsinthevertebratekidneyis:

A)Oxygentransport

B)Hormoneproduction

C)Bloodfiltrationandurineformation

D)Digestion

Q.3(1Mark-MCQ)

Whichofthefollowingisanexampleofanectotherm?

A)Human

B)Bat

C)Snake

D)Pigeon

Q.4(1Mark-NAT)

Ifananimalcell'sosmoticpotentialis-500kPaanditspressure potentialis200kPa,whatisitswaterpotentialinkPa?

Q.5(1Mark-MCQ)

Thecentraldogmaofmolecularbiologystatestheflowofgenetic informationas:

A)Protein→RNA→DNA

B)RNA→DNA→Protein

C)DNA→RNA→Protein

D)DNA→Protein→RNA

TheprocessofgeneratingATPbythemovementofprotonsacross amembraneviaATPsynthaseiscalled:

A)Glycolysis

B)Fermentation

C)Chemiosmosis

D)Substrate-levelphosphorylation

Q.12(1Mark-MCQ)

Whichofthefollowinghormonesissecretedbytheposterior pituitarygland?

A)GrowthHormone

B)ThyroidStimulatingHormone(TSH)

C)AntidiureticHormone(ADH)

D)FollicleStimulatingHormone(FSH)

Q.13(1Mark-NAT)

Ifagenehastwoalleles,Pandp,andthefrequencyofthe recessiveallele(p)inapopulationis0.4,whatisthefrequencyof theheterozygousgenotype(Pp)ifthepopulationisinHardyWeinbergequilibrium?(Answeruptotwodecimalplaces)

Q.14(1Mark-MCQ)

Thephenomenonwhereasinglegeneaffectsmultiplephenotypic traitsisknownas:

A)Polygeny

B)Pleiotropy

C)Epistasis

D)Codominance

Q.15(1Mark-MSQ)

Whichofthefollowingaretypesofinnateimmuneresponses?

A)Phagocytosisbymacrophages

B)AntibodyproductionbyBcells

C)Inflammatoryresponse

D)ActionofNaturalKiller(NK)cells

Q.16(1Mark-MCQ)

Inatypicalneuron,theintegrationofsignalsprimarilyoccursin the:

A)Dendrite

B)Axon

C)Cellbody(Soma)

D)Axonterminal

Q.17(1Mark-NAT)

AnenzymecatalyzesareactionwithaVmaxof200μmol/min andaKmof50μM.Whatisthereactionrate(V0)whenthe substrateconcentrationis50μM?(Answerinμmol/min)

Q.18(1Mark-MCQ)

Whichgermlayergivesrisetothenervoussysteminvertebrates?

A)Ectoderm

B)Mesoderm

C)Endoderm

D)Archenteron

Q19(1Mark-MSQ)

WhichofthefollowingareclassifiedasMolluscs?

A)Starfish

B)Octopuses

C)Snails

D)SeaUrchins

Q20(1Mark-MCQ)

Theultimatesourceofenergyformostecosystemsis:

A)Geothermalenergy

B)Chemicalenergy

C)Solarenergy

D)Nuclearenergy

Q21(1Mark-NAT)

WhatisthenumberofATPmoleculesproduced(net)fromone moleculeofglucoseduringglycolysis?

Q.27(2Marks-MSQ)

Whichofthefollowingarefunctionsoftheliverinmammals?

A)Detoxificationofharmfulsubstances

B)Productionofbile

C)Storageofglycogen

D)Formationofurea

Q.28(2Marks-MCQ)

Anerveimpulsetravelsalonganeuronasaresultof:

A)Activetransportofsodiumionsoutofthecell.

B)Diffusionofpotassiumionsintothecell

C)Sequentialopeningandclosingofvoltage-gatedionchannels.

D)Continuousreleaseofneurotransmitters.

Q.29(2Marks-NAT)

IftherecombinationfrequencybetweengeneAandgeneBis15%, andbetweengeneBandgeneCis20%,andgeneAislocatedto theleftofgeneB,whatistheapproximatedistancebetweengene AandgeneCifgeneBisbetweenAandC?(Answerin centimorgans,cM)

Q.30(2Marks-MCQ)

WhichofthefollowingdescribestheroleofMHCclassImolecules?

A)PresentexogenousantigenstoHelperTcells.

B)PresentendogenousantigenstoCytotoxicTcells.

C)ServeasreceptorsforBcells

D)Areinvolvedinallergicreactions

Q.31(2Marks-MSQ)

Whichofthefollowingeventsoccurduringtheinflammatory response?

A)Vasodilationofbloodvessels

B)Increasedpermeabilityofcapillaries

C)Migrationofphagocytestothesiteofinfection

D)Productionofantibodiesbyplasmacells

ABOUTAUTHORS

Mrs.R.JananiM.Sc.,M.Phil.,P.G.Dip.(EarlyChildhoodcareand Education-CANADA),.,iscurrentlyworkingasSeniorTeacherinReputed PrivateCBSESchool,India.Shehave15+yearsTeachingExperiencesin leadingEngineeringColleges,DentalCollegeandPrivateCBSESchools inTamilnadu,IndiaandDubai,UnitedArabEmirates.Shehave10+Years asTeachingexperiencesinEngineeringandDentalCollegeinINDIAand 5+YearsTeachingExperienceinPrivateInternationalSchools,DubaiUnitedArabEmirates.ShehasPublisheddozensofacademicBooksand ScientificarticlesinreputedJournals.Shehaveproventrackrecordof academicExperiencesbothinDomesticandInternational.

Mr.M.AbishekB.Pharm.,M.Tech.,iscurrentlyworkingasSeniorOfficerMarketinginNTTF-BangaloreHeadquarteredTrainingInstitutesince 2024.Hehave7yearsTeachingExperiencesinleadingEngineering CollegesandUniversitiesinTamilnadu.Hehave8YearsIndustrial ExperiencesinDubai-UnitedArabEmirates,Manama-Bahrainand Muscat-SultanateofOMAN.HehasPublisheddozensofacademicBooks andScientificarticlesinreputedJournals.Hehaveproventrackrecordof academicaswellindustrialExperiencesbothinDomesticand International.

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