WGUl C190l Objectivel Assessmentl (Latestl
2025/l 2026l Update)l Introductionl tol
Biologyl |l Q/Al |l 100%l Correctl (Verifiedl
Answers)
Q:l Hormonesl andl otherl chemicalsl travell throughoutl thel bodyl inl thel liquidl portionl ofl
blood.l Bloodl isl ablel tol transportl al widel varietyl ofl chemicalsl becausel thel liquidl portionl
isl mostlyl water.
Whichl characteristicl ofl waterl isl thisl anl examplel of?
Answer:
Goodl solvent
Q:l Al biologicall polymerl consistsl ofl 358l aminol acidsl linkedl togetherl covalently.
Whatl isl thisl polymer?
Answer:
Al protein
Q:l Al moleculel consistsl ofl al chainl ofl glucosel monomersl linkedl together.
Whatl isl thel functionl ofl thisl moleculel withinl thel cell?
Answer:
Tol storel energy
Q:l Whatl isl truel ofl al moleculel ofl ATPl thatl isl releasedl atl thel endl ofl thel light-
dependentl reactionl ofl photosynthesis?
,Answer:
Itl containsl chemicall potentiall energyl inl thel forml ofl phosphatel bonds.
Q:l Thel initiall biochemicall transformationl ofl glucosel duringl cellularl respirationl occursl
withinl thel cytoplasml ofl thel cell.l Glucosel isl transformedl intol glucose-6-phosphatel asl
ATPl isl convertedl intol ADPl andl al freel phosphatel group.l
Whatl isl happeningl tol energyl inl thisl initiall stepl ofl glycolysis?
Answer:
Energyl isl beingl releasedl froml ATPl tol powerl thel conversionl ofl glucose.
Q:l Whichl ofl thesel isl anl outputl ofl thel light-dependentl reactionl ofl photosynthesis?
Answer:
ATP
Q:l Whichl moleculel isl anl inputl tol thel Calvin-Bensonl cycle?
Answer:
Carbonl dioxide
Q:l Whichl stagel ofl cellularl respirationl releasesl carbonl dioxidel asl al product?
Answer:
Krebsl cycle
Q:l Whichl stagel ofl cellularl respirationl releasesl thel mostl energyl and,l therefore,l
producesl thel mostl ATPl molecules?
Answer:
Electronl transportl chain
,Q:l Inl thel humanl body,l musclel fibersl metabolizel sugarsl tol producel energy.l Fast-twitchl
musclel fibers,l likel thosel usedl duringl short-term,l vigorousl exercise,l carryl outl anl
anaerobicl processl thatl producesl lessl energyl perl sugarl moleculel processed.
Whichl metabolicl processl dol fast-twitchl musclel fibersl carryl out?
Answer:
Fermentation
Q:l Anl organellel consistsl ofl al seriesl ofl membranousl sacsl andl tubes;l somel ofl thesel
sacsl andl tubesl havel ribosomesl embeddedl inl them,l whilel othersl dol not.l Thel functionl ofl
thel organellel isl tol assemblel proteinsl andl otherl cellularl components,l suchl asl lipids.
Whatl isl thisl organellel andl wherel isl itl found?
Answer:
Endoplasmicl reticulum;l bothl plantl andl animall cells
Q:l Whatl isl truel ofl al eukaryoticl cell?
Answer:
Itl containsl mitochondria.
Q:l Whyl arel celll membranesl composedl ofl twol phospholipidl layers,l withl thel fattyl
acidl tailsl ofl eachl layerl directlyl interactingl withl eachl other?
Answer:
Thel fattyl acidl tailsl arel hydrophobicl andl clusterl togetherl awayl froml thel aqueousl
cytoplasml andl thel fluidl outsidel thel cell.
Q:l Somel cellsl needl tol maintainl al setl concentrationl ofl Nal +l andl Kl +l ions.l Thesel
cellsl arel ablel tol dol thisl withl thel helpl ofl thel Na/Kl pump,l whichl transportsl thesel ionsl
, froml areasl ofl lowl concentrationl tol areasl ofl highl concentrationl (againstl theirl
concentrationl gradient).l Nal +l isl pumpedl out,l andl Kl +l isl pumpedl in.
Whichl typel ofl membranel transportl isl involvedl inl thisl action?
Answer:
Activel transport
Q:l Chromosomesl compactl andl organizel geneticl materiall byl wrappingl DNAl aroundl
histones.
Whatl arel histonesl composedl of?
Answer:
Proteins
Q:l Al celll hasl dividedl itsl chromosomesl intol twol newl nuclei.l Thel cytoskeletonl ofl thel
celll isl currentlyl pinchingl thel celll inl thel middlel tol forml twol newl cells.
l
Inl whichl stagel ofl thel celll cyclel isl thisl cell?
Answer:
Cytokinesis
Q:l Whatl isl thel functionl ofl thel histonesl duringl Sl phase?
Answer:
Organizingl andl helpingl tol unwindl thel DNAl sol thel replicationl enzymesl canl accessl it
Q:l Whichl statementl isl truel regardingl thel anaphasel stagel ofl mitosis?
Answer:
Chromosomesl composedl ofl singlel chromatidsl arel pulledl towardsl separatel polesl ofl thel
cell.
2025/l 2026l Update)l Introductionl tol
Biologyl |l Q/Al |l 100%l Correctl (Verifiedl
Answers)
Q:l Hormonesl andl otherl chemicalsl travell throughoutl thel bodyl inl thel liquidl portionl ofl
blood.l Bloodl isl ablel tol transportl al widel varietyl ofl chemicalsl becausel thel liquidl portionl
isl mostlyl water.
Whichl characteristicl ofl waterl isl thisl anl examplel of?
Answer:
Goodl solvent
Q:l Al biologicall polymerl consistsl ofl 358l aminol acidsl linkedl togetherl covalently.
Whatl isl thisl polymer?
Answer:
Al protein
Q:l Al moleculel consistsl ofl al chainl ofl glucosel monomersl linkedl together.
Whatl isl thel functionl ofl thisl moleculel withinl thel cell?
Answer:
Tol storel energy
Q:l Whatl isl truel ofl al moleculel ofl ATPl thatl isl releasedl atl thel endl ofl thel light-
dependentl reactionl ofl photosynthesis?
,Answer:
Itl containsl chemicall potentiall energyl inl thel forml ofl phosphatel bonds.
Q:l Thel initiall biochemicall transformationl ofl glucosel duringl cellularl respirationl occursl
withinl thel cytoplasml ofl thel cell.l Glucosel isl transformedl intol glucose-6-phosphatel asl
ATPl isl convertedl intol ADPl andl al freel phosphatel group.l
Whatl isl happeningl tol energyl inl thisl initiall stepl ofl glycolysis?
Answer:
Energyl isl beingl releasedl froml ATPl tol powerl thel conversionl ofl glucose.
Q:l Whichl ofl thesel isl anl outputl ofl thel light-dependentl reactionl ofl photosynthesis?
Answer:
ATP
Q:l Whichl moleculel isl anl inputl tol thel Calvin-Bensonl cycle?
Answer:
Carbonl dioxide
Q:l Whichl stagel ofl cellularl respirationl releasesl carbonl dioxidel asl al product?
Answer:
Krebsl cycle
Q:l Whichl stagel ofl cellularl respirationl releasesl thel mostl energyl and,l therefore,l
producesl thel mostl ATPl molecules?
Answer:
Electronl transportl chain
,Q:l Inl thel humanl body,l musclel fibersl metabolizel sugarsl tol producel energy.l Fast-twitchl
musclel fibers,l likel thosel usedl duringl short-term,l vigorousl exercise,l carryl outl anl
anaerobicl processl thatl producesl lessl energyl perl sugarl moleculel processed.
Whichl metabolicl processl dol fast-twitchl musclel fibersl carryl out?
Answer:
Fermentation
Q:l Anl organellel consistsl ofl al seriesl ofl membranousl sacsl andl tubes;l somel ofl thesel
sacsl andl tubesl havel ribosomesl embeddedl inl them,l whilel othersl dol not.l Thel functionl ofl
thel organellel isl tol assemblel proteinsl andl otherl cellularl components,l suchl asl lipids.
Whatl isl thisl organellel andl wherel isl itl found?
Answer:
Endoplasmicl reticulum;l bothl plantl andl animall cells
Q:l Whatl isl truel ofl al eukaryoticl cell?
Answer:
Itl containsl mitochondria.
Q:l Whyl arel celll membranesl composedl ofl twol phospholipidl layers,l withl thel fattyl
acidl tailsl ofl eachl layerl directlyl interactingl withl eachl other?
Answer:
Thel fattyl acidl tailsl arel hydrophobicl andl clusterl togetherl awayl froml thel aqueousl
cytoplasml andl thel fluidl outsidel thel cell.
Q:l Somel cellsl needl tol maintainl al setl concentrationl ofl Nal +l andl Kl +l ions.l Thesel
cellsl arel ablel tol dol thisl withl thel helpl ofl thel Na/Kl pump,l whichl transportsl thesel ionsl
, froml areasl ofl lowl concentrationl tol areasl ofl highl concentrationl (againstl theirl
concentrationl gradient).l Nal +l isl pumpedl out,l andl Kl +l isl pumpedl in.
Whichl typel ofl membranel transportl isl involvedl inl thisl action?
Answer:
Activel transport
Q:l Chromosomesl compactl andl organizel geneticl materiall byl wrappingl DNAl aroundl
histones.
Whatl arel histonesl composedl of?
Answer:
Proteins
Q:l Al celll hasl dividedl itsl chromosomesl intol twol newl nuclei.l Thel cytoskeletonl ofl thel
celll isl currentlyl pinchingl thel celll inl thel middlel tol forml twol newl cells.
l
Inl whichl stagel ofl thel celll cyclel isl thisl cell?
Answer:
Cytokinesis
Q:l Whatl isl thel functionl ofl thel histonesl duringl Sl phase?
Answer:
Organizingl andl helpingl tol unwindl thel DNAl sol thel replicationl enzymesl canl accessl it
Q:l Whichl statementl isl truel regardingl thel anaphasel stagel ofl mitosis?
Answer:
Chromosomesl composedl ofl singlel chromatidsl arel pulledl towardsl separatel polesl ofl thel
cell.
