SAR HS342 - Exam 2 Questions with
Correct Answers 2025
MetabolismH-HCORRECTHANSWERH-SumHofHallHchemicalHreactionsHwithinHtheHbody
AnabolicHreactionH-HCORRECTHANSWERH-SynthesisHofHmolecules
CatabolicHreactionH-HCORRECTHANSWERH-BreakdownHofHmolecules
BioenergeticsH-HCORRECTHANSWERH-
ConvertingHfoodstuffsH(i.e.Hfats,Hproteins,Hcarbohydrates)HintoHenergy
PrimaryHenergyHsystemsH-HCORRECTHANSWERH-1)HphosphocreatineHsystemH(ATP-PC)
2)HglycolysisH(anaerobicHandHaerobic)
3)HoxidativeHphosphorylation
CellHmembraneH-HCORRECTHANSWERH-
SemipermeableHmembraneHthatHseparatesHtheHcellHfromHextracellularHenvironments
NucleusH-HCORRECTHANSWERH-ContainsHgenesHthatHregulateHproteinHsynthesis
CytoplasmH-HCORRECTHANSWERH-FluidHportionHwithinHtheHcell
EndergonicHreactionsH-HCORRECTHANSWERH-RequiresHanHenergyHinputHforHtheHreactionHtoHoccur
*endothermicHreaction
,EndothermicHreactionH-HCORRECTHANSWERH-HeatHisHaddedHtoHtheHsystem
ExergonicHreactionsH-HCORRECTHANSWERH-ReleasesHenergyHforHreactionHtoHoccur
*exothermicHreaction
ExothermicHreactionH-HCORRECTHANSWERH-HeatHisHremovedHfromHaHsystem
CoupledHreactionsH-HCORRECTHANSWERH-
ReleaseHofHenergyHfromHanHexergonicHreactionHpowersHanHendergonicHreaction
OxidationHreactionH-HCORRECTHANSWERH-RemovesHelectronsH—>HbecomesHmoreHpositive
ReductionHreactionH-HCORRECTHANSWERH-GainsHelectronsH—>HbecomesHmoreHnegative
T/F:HOxidationHandHreductionHreactionsHalwaysHoccurHtogetherH-HCORRECTHANSWERH-TrueH-
HredoxHreactionsHalwaysHoccurHtogether
NicotinamideHadenineHdinucleotideH(NAD)HoxidizedHandHreducedHformsH-HCORRECTHANSWERH--
HoxidizedHform:HNAD+
-HreducedHform:HNADH
FlavinHadenineHdinucleotideH(FAD)HoxidizedHandHreducedHformsH-HCORRECTHANSWERH--
HoxidizedHform:HFAD
-HreducedHform:HFADH2
EnzymesH-HCORRECTHANSWERH-
IncreasesHspeedHofHreactionHandHprobabilityHofHreactionHoccurringHbyHdecreasingHactivationHener
gy
, FactorsHthatHregulateHenzymeHactivityH-HCORRECTHANSWERH-1)Htemperature
2)HpH
HowHdoesHtemperatureHregulateHenzymeHactivity?H-HCORRECTHANSWERH--
HsmallHriseHinHbodyHtemperatureHincreasesHenzymeHactivity
-HexerciseHresultsHinHincreasedHbodyHtemperature
HowHdoesHpHHregulateHenzymeHactivity?H-HCORRECTHANSWERH--
HchangesHinHpHHreduceHenzymeHactivity
-HlactateHisHproducedHduringHexercise
Lock-and-keyHmodelH-HCORRECTHANSWERH-
EnzymeHandHsubstratesHareHspecificHforHeachHotherHandHfitHjustHlikeHaHlockHandHaHkey
ImportantHclassesHofHenzymesH-HCORRECTHANSWERH-1)Hkinase
2)Hdehydrogenase
3)Hoxidase
4)Hisomerase
WhatHdoesHaHkinaseHenzymeHdo?H-HCORRECTHANSWERH-AddsHaHphosphateHgroup
WhatHdoesHaHdehydrogenaseHenzymeHdo?H-HCORRECTHANSWERH-RemovesHhydrogenHatoms
WhatHdoesHanHoxidaseHenzymeHdo?H-HCORRECTHANSWERH-
CatalyzesHredoxHreactionsHinvolvingHoxygen
Correct Answers 2025
MetabolismH-HCORRECTHANSWERH-SumHofHallHchemicalHreactionsHwithinHtheHbody
AnabolicHreactionH-HCORRECTHANSWERH-SynthesisHofHmolecules
CatabolicHreactionH-HCORRECTHANSWERH-BreakdownHofHmolecules
BioenergeticsH-HCORRECTHANSWERH-
ConvertingHfoodstuffsH(i.e.Hfats,Hproteins,Hcarbohydrates)HintoHenergy
PrimaryHenergyHsystemsH-HCORRECTHANSWERH-1)HphosphocreatineHsystemH(ATP-PC)
2)HglycolysisH(anaerobicHandHaerobic)
3)HoxidativeHphosphorylation
CellHmembraneH-HCORRECTHANSWERH-
SemipermeableHmembraneHthatHseparatesHtheHcellHfromHextracellularHenvironments
NucleusH-HCORRECTHANSWERH-ContainsHgenesHthatHregulateHproteinHsynthesis
CytoplasmH-HCORRECTHANSWERH-FluidHportionHwithinHtheHcell
EndergonicHreactionsH-HCORRECTHANSWERH-RequiresHanHenergyHinputHforHtheHreactionHtoHoccur
*endothermicHreaction
,EndothermicHreactionH-HCORRECTHANSWERH-HeatHisHaddedHtoHtheHsystem
ExergonicHreactionsH-HCORRECTHANSWERH-ReleasesHenergyHforHreactionHtoHoccur
*exothermicHreaction
ExothermicHreactionH-HCORRECTHANSWERH-HeatHisHremovedHfromHaHsystem
CoupledHreactionsH-HCORRECTHANSWERH-
ReleaseHofHenergyHfromHanHexergonicHreactionHpowersHanHendergonicHreaction
OxidationHreactionH-HCORRECTHANSWERH-RemovesHelectronsH—>HbecomesHmoreHpositive
ReductionHreactionH-HCORRECTHANSWERH-GainsHelectronsH—>HbecomesHmoreHnegative
T/F:HOxidationHandHreductionHreactionsHalwaysHoccurHtogetherH-HCORRECTHANSWERH-TrueH-
HredoxHreactionsHalwaysHoccurHtogether
NicotinamideHadenineHdinucleotideH(NAD)HoxidizedHandHreducedHformsH-HCORRECTHANSWERH--
HoxidizedHform:HNAD+
-HreducedHform:HNADH
FlavinHadenineHdinucleotideH(FAD)HoxidizedHandHreducedHformsH-HCORRECTHANSWERH--
HoxidizedHform:HFAD
-HreducedHform:HFADH2
EnzymesH-HCORRECTHANSWERH-
IncreasesHspeedHofHreactionHandHprobabilityHofHreactionHoccurringHbyHdecreasingHactivationHener
gy
, FactorsHthatHregulateHenzymeHactivityH-HCORRECTHANSWERH-1)Htemperature
2)HpH
HowHdoesHtemperatureHregulateHenzymeHactivity?H-HCORRECTHANSWERH--
HsmallHriseHinHbodyHtemperatureHincreasesHenzymeHactivity
-HexerciseHresultsHinHincreasedHbodyHtemperature
HowHdoesHpHHregulateHenzymeHactivity?H-HCORRECTHANSWERH--
HchangesHinHpHHreduceHenzymeHactivity
-HlactateHisHproducedHduringHexercise
Lock-and-keyHmodelH-HCORRECTHANSWERH-
EnzymeHandHsubstratesHareHspecificHforHeachHotherHandHfitHjustHlikeHaHlockHandHaHkey
ImportantHclassesHofHenzymesH-HCORRECTHANSWERH-1)Hkinase
2)Hdehydrogenase
3)Hoxidase
4)Hisomerase
WhatHdoesHaHkinaseHenzymeHdo?H-HCORRECTHANSWERH-AddsHaHphosphateHgroup
WhatHdoesHaHdehydrogenaseHenzymeHdo?H-HCORRECTHANSWERH-RemovesHhydrogenHatoms
WhatHdoesHanHoxidaseHenzymeHdo?H-HCORRECTHANSWERH-
CatalyzesHredoxHreactionsHinvolvingHoxygen