,Contents
Chapter1
tr IntroductiontoBiochemistry v tr 1
Chapter2
tr Water 10
Chapter3
tr AminoAcidsandtheP rimaryStructures ofProte ins
tr tr tr v v 27
Chapter4
tr Proteins:Three-Dime ns io na lStructurea ndF unction
tr v tr tr 46
Chapter5
tr Properties ofEnzymes v v 65
Chapter6
tr Mechanismso f Enzymes tr vtr 85
Chapter7
tr Coenzymes andVitamins v tr 104
Chapter8
tr Carbohydrates 119
Chapter9
tr LipidsandMembranes
tr tr 137
Chapter10
tr IntroductiontoMetabolism v tr 153
Chapter11
tr Glycolysis 169
Chapter12
tr Gluconeogenesis, ThePentosePhosphatePathway, tr tr tr tr
and Glycoge n Metabo lis m
v v 185
Chapter13
tr TheCitric AcidCycle
tr vt r tr 199
Chapter14
tr ElectronTransporta nd Oxidative Phosphorylation
v tr tr tr 213
Chapter15
tr Photosynthesis 227
Chapter16
tr LipidMetabolism
tr 241
Chapter17
tr AminoAcidMetabolism
tr tr 256
Chapter18
tr NucleotideMetabolism tr 269
Chapter19
tr NucleicAcids tr 284
Chapter20
tr DNAReplicatio n, Repair, and Recomb ination
v tr tr v 300
Chapter21
tr Transcriptio na nd RNAProcess ing vt r v 315
Chapter22
tr ProteinSynthe s is v 330
Chapter23
tr RecombinantDNATechnology tr tr 348
,Chapter1 Introduction toBiochemistry v
1) Which elements account for more than 97% of theweight ofmost organisms?
tr v tr tr tr v v v tr tr tr tr
A) C, H, N, Mg, O, S
tr tr tr tr t r
B) C, H, N, O, P,S
tr tr tr tr tr
C) C, H, N tr tr
D) Fe, C, H, O, Ptr tr tr tr
E) Ca 2+, K+, Na +, Mg2+, Cl- tr tr tr tr
Answer: B t r
Page Ref: Section 2
tr tr tr
2) Proteins in biologicalmembranes mayb e
v tr tr vt r tr
A) porous.
B) attached to the membrane surface. tr tr v tr
C) span the membrane. t r tr
D) All of the above tr tr v
E) B and C only
tr tr v
Answer: D t r
Page Ref: Section 3
tr tr tr
3) Which statement about cellulose is false?
tr tr vtr tr tr
A) It is the most abundant polysaccharide in nature.
tr tr tr v tr tr v
B) Its monomers are joined by glycosidic bonds.
tr tr v vtr tr vtr
C) It is presentin the stems of flowering plants.
tr tr tr tr v tr v tr
D) The hydroxyl groups of neighboring cellulose molecules interact to form strong, insoluble fib e
tr tr tr tr v tr tr v v v tr tr tr
rs.
E) It is a branched polymer of glucose.
tr tr tr tr tr tr
Answer: E t r
Page Ref: Section 3
tr tr tr
1
, 4) When Keq ofa reaction =1, then
tr tr tr v tr
A) the forward reaction is faster than the reverse reaction.
tr tr tr v tr vtr tr vtr
B) the reverse reaction isfaster than the forward reaction.
tr vtr v tr tr tr tr
C) the forward andreverse reaction rate constants are equal.
tr tr tr tr tr tr tr tr
D) more products are formed than reactants.
tr v tr tr vtr
E) fewer products are formed than reactants. tr v vtr tr tr
Answer: C t r
Page Ref: Section 4
tr tr tr
5) Which statement is trueabout a reaction with an equilibrium constant, Keq,equal to 1000?
tr tr tr tr vtr vtr tr tr tr tr tr tr tr tr
A) The forwardrateconstant is1000 times greater than the reverse rateconstant.
tr tr tr tr tr tr tr tr tr tr vtr tr
B) The forward rateconstant is 3 times greater than reverse rate constant.
tr tr tr tr tr tr v tr v tr tr
C) The forward rateconstant is 1000 times smaller than the reverse rate constant.
tr tr tr tr tr tr tr tr tr tr tr tr
D) The forward rateconstant is 3 times smaller than the reverserate constant.
tr tr tr tr tr tr v tr tr tr tr tr
E) There is not enough information given to compare the forwardand reverse rate constants.
tr tr tr tr tr v tr tr tr tr tr tr tr
Answer: A t r
Page Ref: Section 4
tr tr tr
6) The study ofthe energy changes during metabolic reactions is called
tr tr tr v tr tr tr v v tr v .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological heat dynamics tr vtr
Answer: D t r
Page Ref: Section 4
tr tr tr
7) A spontaneous chemical reactionalways has a
tr tr tr tr tr tr change.
A) positive Gibbʹs free energy tr tr tr
B) negative Gibbʹs free energy tr tr vtr
C) positive enthalpy t r
D) negative enthalpy t r
E) positive entropy t r
Answer: B t r
Page Ref: Section 4
tr tr tr
2
Chapter1
tr IntroductiontoBiochemistry v tr 1
Chapter2
tr Water 10
Chapter3
tr AminoAcidsandtheP rimaryStructures ofProte ins
tr tr tr v v 27
Chapter4
tr Proteins:Three-Dime ns io na lStructurea ndF unction
tr v tr tr 46
Chapter5
tr Properties ofEnzymes v v 65
Chapter6
tr Mechanismso f Enzymes tr vtr 85
Chapter7
tr Coenzymes andVitamins v tr 104
Chapter8
tr Carbohydrates 119
Chapter9
tr LipidsandMembranes
tr tr 137
Chapter10
tr IntroductiontoMetabolism v tr 153
Chapter11
tr Glycolysis 169
Chapter12
tr Gluconeogenesis, ThePentosePhosphatePathway, tr tr tr tr
and Glycoge n Metabo lis m
v v 185
Chapter13
tr TheCitric AcidCycle
tr vt r tr 199
Chapter14
tr ElectronTransporta nd Oxidative Phosphorylation
v tr tr tr 213
Chapter15
tr Photosynthesis 227
Chapter16
tr LipidMetabolism
tr 241
Chapter17
tr AminoAcidMetabolism
tr tr 256
Chapter18
tr NucleotideMetabolism tr 269
Chapter19
tr NucleicAcids tr 284
Chapter20
tr DNAReplicatio n, Repair, and Recomb ination
v tr tr v 300
Chapter21
tr Transcriptio na nd RNAProcess ing vt r v 315
Chapter22
tr ProteinSynthe s is v 330
Chapter23
tr RecombinantDNATechnology tr tr 348
,Chapter1 Introduction toBiochemistry v
1) Which elements account for more than 97% of theweight ofmost organisms?
tr v tr tr tr v v v tr tr tr tr
A) C, H, N, Mg, O, S
tr tr tr tr t r
B) C, H, N, O, P,S
tr tr tr tr tr
C) C, H, N tr tr
D) Fe, C, H, O, Ptr tr tr tr
E) Ca 2+, K+, Na +, Mg2+, Cl- tr tr tr tr
Answer: B t r
Page Ref: Section 2
tr tr tr
2) Proteins in biologicalmembranes mayb e
v tr tr vt r tr
A) porous.
B) attached to the membrane surface. tr tr v tr
C) span the membrane. t r tr
D) All of the above tr tr v
E) B and C only
tr tr v
Answer: D t r
Page Ref: Section 3
tr tr tr
3) Which statement about cellulose is false?
tr tr vtr tr tr
A) It is the most abundant polysaccharide in nature.
tr tr tr v tr tr v
B) Its monomers are joined by glycosidic bonds.
tr tr v vtr tr vtr
C) It is presentin the stems of flowering plants.
tr tr tr tr v tr v tr
D) The hydroxyl groups of neighboring cellulose molecules interact to form strong, insoluble fib e
tr tr tr tr v tr tr v v v tr tr tr
rs.
E) It is a branched polymer of glucose.
tr tr tr tr tr tr
Answer: E t r
Page Ref: Section 3
tr tr tr
1
, 4) When Keq ofa reaction =1, then
tr tr tr v tr
A) the forward reaction is faster than the reverse reaction.
tr tr tr v tr vtr tr vtr
B) the reverse reaction isfaster than the forward reaction.
tr vtr v tr tr tr tr
C) the forward andreverse reaction rate constants are equal.
tr tr tr tr tr tr tr tr
D) more products are formed than reactants.
tr v tr tr vtr
E) fewer products are formed than reactants. tr v vtr tr tr
Answer: C t r
Page Ref: Section 4
tr tr tr
5) Which statement is trueabout a reaction with an equilibrium constant, Keq,equal to 1000?
tr tr tr tr vtr vtr tr tr tr tr tr tr tr tr
A) The forwardrateconstant is1000 times greater than the reverse rateconstant.
tr tr tr tr tr tr tr tr tr tr vtr tr
B) The forward rateconstant is 3 times greater than reverse rate constant.
tr tr tr tr tr tr v tr v tr tr
C) The forward rateconstant is 1000 times smaller than the reverse rate constant.
tr tr tr tr tr tr tr tr tr tr tr tr
D) The forward rateconstant is 3 times smaller than the reverserate constant.
tr tr tr tr tr tr v tr tr tr tr tr
E) There is not enough information given to compare the forwardand reverse rate constants.
tr tr tr tr tr v tr tr tr tr tr tr tr
Answer: A t r
Page Ref: Section 4
tr tr tr
6) The study ofthe energy changes during metabolic reactions is called
tr tr tr v tr tr tr v v tr v .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological heat dynamics tr vtr
Answer: D t r
Page Ref: Section 4
tr tr tr
7) A spontaneous chemical reactionalways has a
tr tr tr tr tr tr change.
A) positive Gibbʹs free energy tr tr tr
B) negative Gibbʹs free energy tr tr vtr
C) positive enthalpy t r
D) negative enthalpy t r
E) positive entropy t r
Answer: B t r
Page Ref: Section 4
tr tr tr
2
