BIO 3210 UNIT 1 EXAM QUESTIONS WITH CORRECT ANSWERS 2025

BIO 3210 UNIT 1 EXAM QUESTIONS
WITH CORRECT ANSWERS 2025/2026
EmbryonicAstemAcellsAareAdifferentAfromAprimaryAcellAculturesAorApermanentAcellAlinesAderived
AfromAaAtissueAinAthatAtheyAareAcapableAof



a.AgeneratingAmanyAcellAtypes.
A



b.AgrowingAandAdividing.
A



c.AsynthesizingAtheirAownADNA.
A



Ad.AtransportingAnutrientsAacrossAtheirAplasmaAmembrane.A-
AcorrectAanswersa.AgeneratingAmanyAcellAtypes



SolidAtissuesAinAanimalsAincludeAepithelialAtissue,A_______Atissue,AnervousAtissue,AandAmuscle.

a.Ablood
A



b.Aconnective
A



c.Aground
A



d.AepidermalA-AcorrectAanswersb.Aconnective
A



InAfluorescenceAmicroscopy,AtheAimmediateAsourceAofAtheAlightAdetectedAisAlightAthatAhasAbee
nA_______AtheAsample.

a.AabsorbedAby
A



b.AemittedAby
A



c.Aexciting
A



d.AscatteredAfromA-AcorrectAanswersb.AemittedAby
A



ApproximatelyAhowAmanyAdoublingsAcanAnormalAhumanAfibroblastsAundergoAinAculture?

a.A5
A



b.A50AtoA100
A



c.ATheyAwillAgoAonAproliferatingAindefinitely.
A



d.ATheyAwillAnotAdoubleAatAall,AbutAdispersingAthemAinAcultureAallowsAthemAtoAbeAstudiedAinAis
A


olationAfromAotherAcellAtypes.A-AcorrectAanswersb.A50AtoA100

WhatAisAtheAtheoreticalAdiffractionAlimitAofAresolutionAofAaAlightAmicroscopeAusedAtoAlookAatAaAs
ampleAthroughAoil?

a.A0.22Aμm
A

,b.A0.2Anm
A



c.A1Amm
A



d.A0.305AμmA-AcorrectAanswersa.A0.22Aµm
A



WhichAofAtheAfollowingAisAnotAaAunicellularAeukaryote?

a.ASaccharomycesAcerevisiae
A



b.AParamecium
A



c.AArchaebacteria
A



d.AChlamydomonasA-AcorrectAanswersc.AArchaebacteria
A



WhichAofAtheAfollowingAisAaAhigh-
resolutionAlightAmicroscopeAtechniqueAforAdetectingAinteractionsAbetweenAproteins?

a.AFRAPA(fluorescenceArecoveryAafterAphotobleaching)
A



b.AFRETA(fluorescenceAresonanceAenergyAtransfer)
A



c.AMPEMA(multi-photonAexcitationAmicroscopy)
A



d.AConfocalAmicroscopyA-AcorrectAanswersb.AFRETA(fluorescenceAresonanceAenergyAtransfer)
A



TheAfeatureAthatAmostAclearlyAseparatesAeukaryotesAfromAprokaryotesAisAtheApresenceAofA___
____AinAeukaryoticAcells.

a.Aribosomes
A



b.AoxidativeAphosphorylation
A



c.ADNAAmolecules
A



d.AaAnucleusA-AcorrectAanswersd.AaAnucleus
A



TheAoriginalAatmosphereAofAEarthAisAthoughtAtoAhaveAbeenArichAin

a.ACO2,AN2,AO2,ARn,AandANe.
A



b.ACO2,AN2,AO2,AAr,AandANe.
A



c.ACO2,AN2,AH2,AH2S,AandACO.
A



d.ACO2,AN2,AH2,AKr,AandAXe.A-AcorrectAanswersc.ACO2,AN2,AH2,AH2S,AandACO
A



BacteriophagesAare

a.AaAstrainAofAgram-negativeAbacteria.
A



b.AbacteriaAthatAphagocytoseAotherAcompetingAbacteria.
A



c.AbacterialAlysosomes.
A

,d.AvirusesAthatAinfectAbacteria.A-AcorrectAanswersd.AvirusesAthatAinfectAbacteria
A



ChloroplastsAareAthoughtAtoAhaveAoriginatedAfromAendosymbiosisAofA_______AbyAaAlargeAhostA
cell.

a.AanaerobicAbacteria
A



b.AphotosyntheticAeubacteriaAsuchAasAcyanobacteria
A



c.AfungiAsuchAasAyeast
A



Ad.AnonphotosyntheticAaerobicAbacteriaA-
AcorrectAanswersb.AphotosyntheticAeubacteriaAsuchAasAcyanobacteria



TheAsourceAofAtheAatmosphericAoxygenAnecessaryAforAtheAdevelopmentAofAoxidativeAmetaboli
smAisAthoughtAtoAhaveAbeen

a.Aglycolysis.
A



b.AtheAformationAofAEarth.
A



c.AtheAbreakdownAofAATP.
A



d.Aphotosynthesis.A-AcorrectAanswersd.Aphotosynthesis
A



WhichAofAtheAfollowingAareAtheAmostAcommonlyAusedAmammalsAforAgeneticAstudies?

a.AHumans
A



b.AXenopusAlaevis
A



c.AMice
A



d.ACatsA-AcorrectAanswersc.AMice
A



TheAgenomeAofAeukaryotesAconsistsAofAgenesAderivedAfrom

a.AarchaebacteriaAalone.
A



b.AbacteriaAalone.
A



c.AbothAarchaebacteriaAandAbacteria.
A



d.AneitherAarchaebacteriaAnorAbacteria.A-AcorrectAanswersc.AbothAarchaebacteriaAandAbacteria
A



InAcontrastAtoAanimalAcells,AyeastAorAbacterialAcellAculturesAcanAbeAgrownAonAfairlyAsimpleAmedi
aAwithoutAtheAneedAtoAaddAaminoAacidsAorAvariousAvitaminsAandAhormones.AThisAisAprimarilyAb
ecauseAanimalAcells

a.AtypicallyAliveAinAassociationAwithAotherAcells.
A



b.AareAlessAcapableAofAtransportingAsmallAmoleculesAacrossAtheirAmembranes.
A

, c.AcomeAfromAorganismsAthatAhaveAspecializedAcellAtypes.
A



Ad.AhaveAtooAmanyAgenesAtoAbeAableAtoAkeepAtrackAofAtheAbiosynthesisAofAneededAmetabolites.
A-AcorrectAanswersc.AcomeAfromAorganismsAthatAhaveAspecializedAcellAtypes



TheAoriginalAcellAwasAthoughtAtoAhaveAarisenAfromAtheAenclosureAofAself-
replicatingA_______AbyAaAphospholipidAmembrane.

a.ADNA
A



b.Acarbohydrate
A



c.Aprotein
A



d.ARNAA-AcorrectAanswersd.ARNA
A



TransmissionAelectronAmicroscopyAisAusedAto

a.AstudyAinAsingle,AthinAsectionsAtheAshapesAofAwholeAcells.
A



b.AviewAlivingAcellsAinAthreeAdimensions.
A



c.AviewAfluorescentlyAlabeledAproteinsAinAcells.
A



Ad.AobserveAsubcellularAorganellesAandAmacromolecules.A-
AcorrectAanswersd.AobserveAsubcellularAorganellesAandAmacromolecules



HowAmanyAgenesAdoesAanAE.AcoliAhave?

a.A4,300
A



b.A6,000
A



c.A14,000
A



d.A20,000-25,000A-AcorrectAanswersa.A4,300
A



AnAE.AcoliAcellAunderAwell-definedAlaboratoryAconditionsAdividesAaboutAevery

a.A20Aminutes.
A



b.A2Ahours.
A



c.A12Ahours.
A



d.A24Ahours.A-AcorrectAanswersa.A20Aminutes
A



WhatAisAtheAsmallestAnumberAofAultracentrifugationAstepsAneededAtoAseparateAnucleiAfromArib
osomesAinAaAcellularAlysate?

a.A1
A



b.A2
A