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Exam (elaborations)

SAR HS342 - Exam 2 Questions with Correct Answers 2025

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SAR HS342 - Exam 2 Questions with Correct Answers 2025

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Uploaded on
April 20, 2025
Number of pages
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Written in
2024/2025
Type
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  • sar hs342 exam 2 questions with correct answers

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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
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