BIOCHEM ACS STUDY GUIDE
EachpoofpothepofollowingposubcellularpostructurespocontainspoDNApoEXCEPT A.potheponucleus.po B.poribosomes.poC.pochloroplasts.poD.pomitochondria.po-poans--B Inpoplantpoandpoanimalpocells,pothepothree-dimensionalpointegritypoofpothepocell poispomaintained,poinpopart,pobypoanpointernalponetworkpoofpofilamentspocalled poA.pothepocellpowall.poB.pothepoGolgipoapparatus.poC.pothepocytoskeleton.poD.pothepoendoplasmicporeticulum.po-poans--C Ofpothepofollowing,powhichpoarepoprokaryotes?A.povirusespo B.pobacteriapo C.poyeast poD.poplantpocellspo-poans--B G°poforpothepoconversionpoofpoglycerol-3-phosphatepotopoglycerolpo+poPipoispo-2.2pokcal/ mole.poThus,poyoupocanpoconcludepothat A.pothisporeactionpowillpooccurpospontaneously.B.pothisporeactionpomaypoorpomayponotpooccurpospontaneously,podependingpoonpothe poactualpoconcentrationspoofporeactantspoandpoproducts.C.pothisporeactionpowillpoonlypooccurpospontaneouslypoifpoitpoispocoupledpoto anotherporeactionpothatpohaspoapomorepofavorablepoG°.D.pothisporeactionpoisposopostronglypofavorablepothatpoitpocouldpobepocoupledpoto podrivepoanpootherwisepounfavorablepocellporeaction.po-poans--B Inpomostpobiochemicalporeactions,po∆PVpois A.ponegligible B.popositive C.ponegative D.podependentpoonpo∆Epo-poans--A AccordingpotopothepoSecondpoLawpoofpoThermodymnamics, 1 / 3
poA.pothepototalpoentropypochangepoinpoanyporeactionpothatpooccurspospontaneouslypomust pobepogreaterpothanpo0.poB.pothepototalpoentropypochangepoinpoanyporeactionpothatpooccurspospontaneouslypomust pobepolesspothanpo0.poC.pothepototalpoentropypoofpothepouniverseporemainspoconstant.poD.pothepototalpoentropypoofpothepouniversepoispoalwayspodecreasing.po-poans--A Whichpoofpothepofollowingpoispotrue?poA.poLiquidpoandposolidpowaterpohavepotheposameponumberpoofpohydrogenpobondspoperpo moleculepoofpowater poB.poLiquidpowaterpohaspomorepohydrogenpobondspoperpomoleculepothanpodoesposolidpow ater poC.poSolidpowaterpohaspomorepohydrogenpobondspoperpomoleculepothanpodoespoliquidpow ater poD.poHydrogenpobondingpoispoapomajorpofactorpoinpothepostructurepoofpogaseouspowater poE.poNonepoispotruepo-poans--C WhatpoispothepopHpoofpoanpoaqueousposolutionpothatpohaspoapo[OH-]poofpo3.45poxpo10- 5poM?poA.po3.47 poB.po4.47 poC.po5.53 poD.po9.54 poE.pononepoofpothepoabovepo-poans--D Apopeptidepowaspofoundpotopohavepoapomolecularpomasspoofpoaboutpo650poandpouponpohy drolysispoproducedpoAla,poCys,poLys,poPhe,poandpoValpoinpoapo1:1:1:1:1poratio.poThepopep tidepouponpotreatmentpowithpoSanger'sporeagentpoproducedpoDNP- Cyspoandpoexposurepotopocarboxypeptidasepoproducedpovaline.poChymotrypsinpotreatme ntpoofpothepopeptidepoproducedpoapodipeptidepothatpocontainedposulfurpoandpohaspoapoUVp oabsorbance,poandpoapotripeptide.poExposurepoofpothepopeptidepotopotrypsinpoproducedpoa podipeptidepoandpoapotripeptide.poDeducepotheposequencepoofpothepopeptide.poA.poVal-Ala-Lys-Phe-Cys poB.poCys-Lys-Phe-Ala-Val poC.poCys-Ala-Lys-Phe-Val poD.poCys-Phe-Lys-Ala-Val poE.poVal-Phe-Lys-Ala-Cyspo-poans--D WhichpoaminopoacidpohaspoanpoR-grouppopKapoclosestpotopophysiologicalpopH?poA.polysine poB.pohistidine poC.poglutamate poD.poarginine poE.poaspartatepo-poans--B 2 / 3
WhichpoispotrueporegardingpothepoorientationpoofpothepoR-groupspoinpobetapostructures?poA.poInpothepoparallelpobetaposheetpostructurespothepoaminopoacidpoR- groupspoarepoallpoonpotheposameposidepoofpotheposheet.poB.poInpothepoantiparallelpobetaposheetpostructurepothepoR- groupspoonpoalternatepostrandspoarepoonpotheposameposidepoofpotheposheet.poC.poInpoparallelpoandpoantiparallelposheetspoconsecutivepoR- groupspoonpoeachpopeptidepostrandpoalternateposidespoofpotheposheet.poD.poBecausepoofpothepofreeporotationpoaroundpothepoalphapocarbon,pothepoR- groupspocanposeekpothepoleastpocrowdedporegionpoandpoareponotporestrictedpotopospecificp osidepoofpotheposheet.poE.poapoandpobpo-poans--C Aporeagentpocommonlypoemployedpotopocleavepodisulfidepobondspoinpoproteinspois poA.po2,4-dinitrofluorobenzene poB.pourea poC.po2-mercaptoethanol poD.pophenylisothiocyanate poE.pocyanogenpobromidepo-poans--C Withporespectpotopoaporelaxedpomuscle,powhichpoofpothepofollowingpoispotrue?poA.potheponumberpoofpoactin-myosinpocross- bridgespoispomaximizedpoandpothepomusclepoisposhortened poB.potheponumberpoofpoactin- myosinpocrosspobridgespoispomaximizedpoandpothepomusclepoispostretched poC.potheponumberpoofpoactin- myosinpocrosspobridgespoispominimizedpoandpothepomusclepoisposhortened poD.potheponumberpoofpoactin- myosinpocrosspobridgespoispominimizedpoandpothepomusclepoispostretched poE.pononepoofpothepoabovepo-poans--D Whichpoofpothepofollowingpodoesponotpodescribepohemoglobin?poA.poHemoglobinpoispoanpooxygenpotransportpoprotein.poB.poHemoglobinpoispoanpoallostericpoprotein.poC.poHemoglobinpohaspoquaternarypostructure.poD.poCopperpoionspoarepoimportantpoinpohemoglobin'spoabilitypotopobindpooxygen.poE.poHemoglobinpoispocomposed,poinpopart,poofpoanpoironpocontainingpohemepogroup.po- poans--D Whichpoofpothepofollowingpowouldpoallowpoyoupotopodeterminepothepoisoelectric popointpoofpoapoprotein?poA.poproteinpoquaternarypostructure poB.poproteinposolubilitypoaspoapofunctionpoofpopH poC.poproteinposize poD.poproteinposhape poE.poproteinpotertiarypostructurepo-poans--B
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