BIO 110 - EXAM 2 QUESTIONS AND
ANSWERS RATED A+ SURE PASS
2026/27
Reactantsncapablenofninteractingntonformnproductsninnanchemicalnreactionnmustnfirstnovercomenant
hermodynamicnbarriernknownnasnthenreaction'sn-nCORRECTnANSWERSnActivationnEnergy
Whichnofnthenfollowingnstatementsnregardingnenzymesnisntrue?n-
nCORRECTnANSWERSnEnzymesnincreasenthenratenofnanreactionnbynloweringnthenactivationnenergynb
arrier
Thenactivensitenofnannenzymenisnthenregionnthatn-
nCORRECTnANSWERSnIsninvolvedninnthencatalyticnreactionnofnthenenzyme
Increasingnthensubstratenconcentrationninnannenzymaticnreactionncouldnovercomenwhichnofnthenfol
lowing?n-nCORRECTnANSWERSnCompetitivenInhibition
Thenmechanismninnwhichnthenendnproductnofnanmetabolicnpathwayninhibitsnannearliernstepninnthenp
athwaynisnmostnpreciselyndescribednasn-nCORRECTnANSWERSnFeedbacknInhibition
Howndoesnannenzymenincreasenthenratenofnthenchemicalnreactionnitncatalyzes?n-
nCORRECTnANSWERSnAnnenzymenreducesnthenfreenenergynofnactivationnofnthenreactionnitncatalyzes
Whichnstatementnaboutnthenbindingnofnenzymesnandnsubstratesnisncorrect?n-
nCORRECTnANSWERSnWhennsubstratenmoleculesnbindntonthenactivensitenofnthenenzyme,nthenenzym
enundergoesnanslightnchangeninnshape
Accordingntontheninducednfitnhypothesisnofnenzymencatalysis,nwhichnofnthenfollowingnisncorrect?n-
nCORRECTnANSWERSnThenbindingnofnthensubstratenchangesnthenshapenofnthenenzyme'snactivensite
, Besidesnturningnenzymesnonnornoff,nwhatnothernmeansndoesnancellnusentoncontrolnenzymaticnactivit
y?n-nCORRECTnANSWERSnLocalizationnofnenzymesnintonspecificnorganellesnornmembranes
AnseriesnofnenzymesncatalyzenthenreactionnXn→nYn→nZn→nA.nProductnAnbindsntonthenenzymenthatnco
nvertsnXntonYnatnanpositionnremotenfromnitsnactivensite.nThisnbindingndecreasesnthenactivitynofnthene
nzyme.
WhatnisnsubstancenX?n-nCORRECTnANSWERSnAnsubstrate
Whatnisnthentermnfornmetabolicnpathwaysnthatnreleasenstorednenergynbynbreakingndownncomplexn
molecules?n-nCORRECTnANSWERSnCatabolicnpathways
Whennelectronsnmovencloserntonanmorenelectronegativenatom,nwhatnhappens?n-
nCORRECTnANSWERSnThenmorenelectronegativenatomnisnreduced,nandnenergynisnreleased
WhennanmoleculenofnNAD+n(nicotinamidenadeninendinucleotide)ngainsnanhydrogennatomn(notnanpr
oton),nthenmoleculenbecomesn-nCORRECTnANSWERSnReduced
WhichnofnthenfollowingnstatementsndescribesnNAD+?n-
nCORRECTnANSWERSnNAD+nisnreducedntonNADHnduringnglycolysis,npyruvatenoxidation,nandnthencitr
icnacidncycle
ThenATPnmadenduringnglycolysisnisngeneratednbyn-nCORRECTnANSWERSnSubstrate-
levelnphosphorylation
Thenoxygennconsumednduringncellularnrespirationnisninvolvedndirectlyninnwhichnprocessnornevent?n-
nCORRECTnANSWERSnAcceptingnelectronsnatnthenendnofnthenelectronntransportnchain
ANSWERS RATED A+ SURE PASS
2026/27
Reactantsncapablenofninteractingntonformnproductsninnanchemicalnreactionnmustnfirstnovercomenant
hermodynamicnbarriernknownnasnthenreaction'sn-nCORRECTnANSWERSnActivationnEnergy
Whichnofnthenfollowingnstatementsnregardingnenzymesnisntrue?n-
nCORRECTnANSWERSnEnzymesnincreasenthenratenofnanreactionnbynloweringnthenactivationnenergynb
arrier
Thenactivensitenofnannenzymenisnthenregionnthatn-
nCORRECTnANSWERSnIsninvolvedninnthencatalyticnreactionnofnthenenzyme
Increasingnthensubstratenconcentrationninnannenzymaticnreactionncouldnovercomenwhichnofnthenfol
lowing?n-nCORRECTnANSWERSnCompetitivenInhibition
Thenmechanismninnwhichnthenendnproductnofnanmetabolicnpathwayninhibitsnannearliernstepninnthenp
athwaynisnmostnpreciselyndescribednasn-nCORRECTnANSWERSnFeedbacknInhibition
Howndoesnannenzymenincreasenthenratenofnthenchemicalnreactionnitncatalyzes?n-
nCORRECTnANSWERSnAnnenzymenreducesnthenfreenenergynofnactivationnofnthenreactionnitncatalyzes
Whichnstatementnaboutnthenbindingnofnenzymesnandnsubstratesnisncorrect?n-
nCORRECTnANSWERSnWhennsubstratenmoleculesnbindntonthenactivensitenofnthenenzyme,nthenenzym
enundergoesnanslightnchangeninnshape
Accordingntontheninducednfitnhypothesisnofnenzymencatalysis,nwhichnofnthenfollowingnisncorrect?n-
nCORRECTnANSWERSnThenbindingnofnthensubstratenchangesnthenshapenofnthenenzyme'snactivensite
, Besidesnturningnenzymesnonnornoff,nwhatnothernmeansndoesnancellnusentoncontrolnenzymaticnactivit
y?n-nCORRECTnANSWERSnLocalizationnofnenzymesnintonspecificnorganellesnornmembranes
AnseriesnofnenzymesncatalyzenthenreactionnXn→nYn→nZn→nA.nProductnAnbindsntonthenenzymenthatnco
nvertsnXntonYnatnanpositionnremotenfromnitsnactivensite.nThisnbindingndecreasesnthenactivitynofnthene
nzyme.
WhatnisnsubstancenX?n-nCORRECTnANSWERSnAnsubstrate
Whatnisnthentermnfornmetabolicnpathwaysnthatnreleasenstorednenergynbynbreakingndownncomplexn
molecules?n-nCORRECTnANSWERSnCatabolicnpathways
Whennelectronsnmovencloserntonanmorenelectronegativenatom,nwhatnhappens?n-
nCORRECTnANSWERSnThenmorenelectronegativenatomnisnreduced,nandnenergynisnreleased
WhennanmoleculenofnNAD+n(nicotinamidenadeninendinucleotide)ngainsnanhydrogennatomn(notnanpr
oton),nthenmoleculenbecomesn-nCORRECTnANSWERSnReduced
WhichnofnthenfollowingnstatementsndescribesnNAD+?n-
nCORRECTnANSWERSnNAD+nisnreducedntonNADHnduringnglycolysis,npyruvatenoxidation,nandnthencitr
icnacidncycle
ThenATPnmadenduringnglycolysisnisngeneratednbyn-nCORRECTnANSWERSnSubstrate-
levelnphosphorylation
Thenoxygennconsumednduringncellularnrespirationnisninvolvedndirectlyninnwhichnprocessnornevent?n-
nCORRECTnANSWERSnAcceptingnelectronsnatnthenendnofnthenelectronntransportnchain