,Contents
Chapterm1 IntroductionmtomBiochemistry 1
Chapterm2 Water 10
Chapterm3 AminomAcidsmandmthemPrimarymStructuresmofmProteins 27
Chapterm4 Proteins:mThree-DimensionalmStructuremandmFunction 46
Chapterm5 PropertiesmofmEnzymes 65
Chapterm6 MechanismsmofmEnzymes 85
Chapterm7 CoenzymesmandmVitamins 104
Chapterm8 Carbohydrates 119
Chapterm9 LipidsmandmMembranes 137
Chapterm10 IntroductionmtomMetabolism 153
Chapterm11 Glycolysis 169
Chapterm12 Gluconeogenesis,mThemPentosemPhosphatemPathway,
andmGlycogenmMetabolism 185
Chapterm13 ThemCitricmAcidmCycle 199
Chapterm14 ElectronmTransportmandmOxidativemPhosphorylation 213
Chapterm15 Photosynthesis 227
Chapterm16 LipidmMetabolism 241
Chapterm17 AminomAcidmMetabolism 256
Chapterm18 NucleotidemMetabolism 269
Chapterm19 NucleicmAcids 284
Chapterm20 DNAmReplication,mRepair,mandmRecombination 300
Chapterm21 TranscriptionmandmRNAmProcessing 315
Chapterm22 ProteinmSynthesis 330
Chapterm23 RecombinantmDNAmTechnology 348
,Chapter 1 Introduction to Biochemistry
m m m
1) Whichm elementsmaccountm form morem thanm 97%m ofmthem weightm ofmmostmorganisms?
A) C,mH,mN,mMg,mO,m S
B) C,mH,mN,mO,mP,mS
C) C,mH,mN
D) Fe,mC,mH,mO,mP
E) Ca2+,m K+,m Na+,m Mg2+,m Cl-
Answer:m B
PagemRef:mSectionm2
2) Proteinsminm biologicalm membranesm maym be
A) porous.
B) attachedm tomthem membranem surface.
C) spanm them membrane.
D) Allm ofmthemabove
E) Bmandm Cmonly
Answer:m D
PagemRef:mSectionm3
3) Whichm statementm aboutm cellulosem ism false?
A) Itm ismthem mostmabundantm polysaccharidem inmnature.
B) Itsmmonomersm arem joinedm bymglycosidicm bonds.
C) Itm ismpresentm inmthem stemsmofmfloweringm plants.
D) Them hydroxylm groupsm ofm neighboringm cellulosem moleculesm interactm tom formm strong,m ins
olublemfibers.
E) Itm ismam branchedm polymerm ofmglucose.
Answer:m E
PagemRef:mSectionm3
1
, 4) WhenmKeqmofmam reactionm=m1,mthen
A) them forwardm reactionm ism fasterm thanm them reversem reaction.
B) them reversem reactionmism fasterm thanm them forwardm reaction.
C) them forwardm andm reversem reactionm ratem constantsm arem equal.
D) morem productsm arem formedm thanm reactants.
E) fewerm productsm arem formedm thanm reactants.
Answer:m C
PagemRef:mSectionm4
5) Whichm statementm ism truemaboutm am reactionmwithmanm equilibriumm constant,m Keq,mequalm tom1000?
A) Them forwardm ratem constantm ism1000m timesmgreaterm thanm them reversem ratem constant.
B) Them forwardm ratem constantm ism3m timesmgreaterm thanm reversem ratem constant.
C) Them forwardm ratem constantm ism1000m timesm smallermthanm them reversem ratem constant.
D) Them forwardm ratem constantm ism3m timesmsmallermthanm them reversem ratem constant.
E) Therem ism notm enoughm informationm givenm tomcomparem them forwardm andm reversem ratem consta
nts.
Answer:m A
PagemRef:mSectionm4
6) Them studym ofmthem energym changesm duringm metabolicm reactionsm ism called .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicalm heatm dynamics
Answer:m D
PagemRef:mSectionm4
7) Am spontaneousm chemicalm reactionm alwaysm hasm a change.
A) positivem Gibbʹsm freem energy
B) negativem Gibbʹsm freem energy
C) positivem enthalpy
D) negativem enthalpy
E) positivem entropy
Answer:m B
PagemRef:mSectionm4
2
Chapterm1 IntroductionmtomBiochemistry 1
Chapterm2 Water 10
Chapterm3 AminomAcidsmandmthemPrimarymStructuresmofmProteins 27
Chapterm4 Proteins:mThree-DimensionalmStructuremandmFunction 46
Chapterm5 PropertiesmofmEnzymes 65
Chapterm6 MechanismsmofmEnzymes 85
Chapterm7 CoenzymesmandmVitamins 104
Chapterm8 Carbohydrates 119
Chapterm9 LipidsmandmMembranes 137
Chapterm10 IntroductionmtomMetabolism 153
Chapterm11 Glycolysis 169
Chapterm12 Gluconeogenesis,mThemPentosemPhosphatemPathway,
andmGlycogenmMetabolism 185
Chapterm13 ThemCitricmAcidmCycle 199
Chapterm14 ElectronmTransportmandmOxidativemPhosphorylation 213
Chapterm15 Photosynthesis 227
Chapterm16 LipidmMetabolism 241
Chapterm17 AminomAcidmMetabolism 256
Chapterm18 NucleotidemMetabolism 269
Chapterm19 NucleicmAcids 284
Chapterm20 DNAmReplication,mRepair,mandmRecombination 300
Chapterm21 TranscriptionmandmRNAmProcessing 315
Chapterm22 ProteinmSynthesis 330
Chapterm23 RecombinantmDNAmTechnology 348
,Chapter 1 Introduction to Biochemistry
m m m
1) Whichm elementsmaccountm form morem thanm 97%m ofmthem weightm ofmmostmorganisms?
A) C,mH,mN,mMg,mO,m S
B) C,mH,mN,mO,mP,mS
C) C,mH,mN
D) Fe,mC,mH,mO,mP
E) Ca2+,m K+,m Na+,m Mg2+,m Cl-
Answer:m B
PagemRef:mSectionm2
2) Proteinsminm biologicalm membranesm maym be
A) porous.
B) attachedm tomthem membranem surface.
C) spanm them membrane.
D) Allm ofmthemabove
E) Bmandm Cmonly
Answer:m D
PagemRef:mSectionm3
3) Whichm statementm aboutm cellulosem ism false?
A) Itm ismthem mostmabundantm polysaccharidem inmnature.
B) Itsmmonomersm arem joinedm bymglycosidicm bonds.
C) Itm ismpresentm inmthem stemsmofmfloweringm plants.
D) Them hydroxylm groupsm ofm neighboringm cellulosem moleculesm interactm tom formm strong,m ins
olublemfibers.
E) Itm ismam branchedm polymerm ofmglucose.
Answer:m E
PagemRef:mSectionm3
1
, 4) WhenmKeqmofmam reactionm=m1,mthen
A) them forwardm reactionm ism fasterm thanm them reversem reaction.
B) them reversem reactionmism fasterm thanm them forwardm reaction.
C) them forwardm andm reversem reactionm ratem constantsm arem equal.
D) morem productsm arem formedm thanm reactants.
E) fewerm productsm arem formedm thanm reactants.
Answer:m C
PagemRef:mSectionm4
5) Whichm statementm ism truemaboutm am reactionmwithmanm equilibriumm constant,m Keq,mequalm tom1000?
A) Them forwardm ratem constantm ism1000m timesmgreaterm thanm them reversem ratem constant.
B) Them forwardm ratem constantm ism3m timesmgreaterm thanm reversem ratem constant.
C) Them forwardm ratem constantm ism1000m timesm smallermthanm them reversem ratem constant.
D) Them forwardm ratem constantm ism3m timesmsmallermthanm them reversem ratem constant.
E) Therem ism notm enoughm informationm givenm tomcomparem them forwardm andm reversem ratem consta
nts.
Answer:m A
PagemRef:mSectionm4
6) Them studym ofmthem energym changesm duringm metabolicm reactionsm ism called .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicalm heatm dynamics
Answer:m D
PagemRef:mSectionm4
7) Am spontaneousm chemicalm reactionm alwaysm hasm a change.
A) positivem Gibbʹsm freem energy
B) negativem Gibbʹsm freem energy
C) positivem enthalpy
D) negativem enthalpy
E) positivem entropy
Answer:m B
PagemRef:mSectionm4
2
