BSC 1010 CHAPTER 8,9,10 TEST QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

BSC 1010 CHAPTER 8,9,10 TEST
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
ChooseCtheCpairCofCtermsCthatCcorrectlyCcompletesCthisCsentence:CCatabolismCisCtoCanabolismCasC______Cis
CtoC______.C(8)




a.Cexergonic;Cspontaneous

b.Cexergonic;Cendergonic

c.CfreeCenergy;Centropy

d.Cwork;Cenergy

e.Centropy;CenthalpyC-CANSWERCb



MostCcellsCcannotCharnessCheatCtoCperformCworkCbecauseC(8)



a.CheatCisCnotCaCformCofCenergy.

b.CcellsCdoCnotChaveCmuchCheat;CtheyCareCrelativelyCcool.

c.CtemperatureCisCusuallyCuniformCthroughoutCaCcell.

d.CheatCcanCneverCbeCusedCtoCdoCwork.

e.CheatCmustCremainCconstantCduringCwork.C-CANSWERCc



WhichCofCtheCfollowingCmetabolicCprocessesCcanCoccurCwithoutCaCnetCinfluxCofCenergyCfromCsomeCotherCpr
ocesses?C(8)



a.CADPC+CPiC->CATPC+CH2O

b.CC6H12O6C+C6O2C->C6CO2C+C6H2O

c.C6CO2C+C6H2OC->CC6H12O6C+C6O2

d.CaminoCacidsC->Cproteins

e.CglucoseC+CfructoseC->CsucroseC-CANSWERCb

,IfCanCenzymeCinCsolutionCisCsaturatedCwithCsubstrate,CtheCmostCeffectiveCwayCtoCobtainCaCfasterCyieldCofCpr
oductsCisCtoC(8)



a.CaddCmoreCofCtheCenzyme.

b.CheatCtheCsolutionCtoC90°C.

c.CaddCmoreCsubstrate.

d.CaddCanCallostericCinhibitor.

e.CaddCaCnoncompetitiveCinhibitor.C-CANSWERCa



SomeCbacteriaCareCmetabolicallyCactiveCinChotCspringsCbecauseC(8)



a.CtheyCareCableCtoCmaintainCaClowerCinternalCtemperature.

b.ChighCtemperaturesCmakeCcatalysisCunnecessary.

c.CtheirCenzymesChaveChighCoptimalCtemperatures.

d.CtheirCenzymesCareCcompletelyCinsensitiveCorCtemperature.

e.CtheyCuseCmoleculesCotherCthanCproteinsCorCRNAsCasCtheirCmainCcatalysts.C-CANSWERCc



IfCanCenzymeCisCaddedCtoCaCsolutionCwhereCitsCsubstrateCandCproductCareCinCequilibrium,CwhatCwillCoccur?C
(8)



a.CAdditionalCproductCwillCbeCformed.

b.CAdditionalCsubstrateCwillCbeCformed.

c.CTheCreactionCwillCchangeCfromCendergonicCtoCexergonic.

d.CTheCfreeCenergyCofCtheCsystemCwillCchange.

e.CNothing;CtheCreactionCwillCstayCatCequilibrium.C-CANSWERCe



TheCimmediateCenergyCsourceCthatCdrivesCATPCsynthesisCbyCATPCsynthaseCduringCoxidativeCphosphorylatio
nCisCtheC(9)



a.CoxidationCofCglucoseCandCotherCorganicCcompounds.

, b.CflowCofCelectronsCdownCtheCelectronCtransportCchain.

c.CaffinityCofCoxygenCforCelectrons.

d.CH+CconcentrationCacrossCtheCmembraneCholdingCATPCsynthase.

e.CtransferCofCphosphateCtoCADP.C-CANSWERCd



WhichCmetabolicCpathwayCisCcommonCtoCbothCfermentationCandCcellularCrespirationCofCaCglucoseCmolecul
e?C(9)



a.CtheCcitricCacidCcycle

b.CtheCelectronCtransportCchan

c.Cglycolysis

d.CsynthesisCofCacetylCCoACfromCpyruvate

e.CreductionCofCpyruvateCtoClactateC-CANSWERCc



InCmitochondria,CexergonicCredoxCreactions

(9)
C



a.CareCtheCsourceCofCenergyCdrivingCprokaryoticCATPCsynthesis.

b.CareCdirectlyCcoupledCtoCsubstrate-levelCphosphorylation.

c.CprovideCtheCenergyCthatCestablishesCtheCprotonCgradient.

d.CreduceCcarbonCatomsCtoCcarbonCdioxide.

e.CareCcoupledCviaCphosphorylatedCintermediatesCtoCendergonicCprocesses.C-CANSWERCc



TheCfinalCelectronCacceptorCofCtheCelectronCtransportCchainCthatCfunctionsCinCaerobicCoxidativeCphosphory
lationCisC(9)



a.Coxygen.

b.Cwater.

c.CNAD+.

d.Clactate.