,Contents
Chapteri i 1 Introductioni i toi i Biochemistry 1
Chapter 2 Water 10
Chapter 3 Amino Acidsiiiiii and 27
theii Primaryii Structuresii ofiProteins
Chapter 4 Proteins:iiiiii Three-Dimensionaliiiiii Structureandi i Function 46
Chapter 5 Properties ofi i Enzymes 65
Chapter 6 Mechanisms ofi i Enzymes 85
Chapter 7 Coenzymes andi i Vitamins 104
Chapter 8 Carbohydrates 119
Chapter 9 Lipids andi i Membranes 137
Chapteri i 10 Introductioni i toi i Metabolism 153
Chapter 11 Glycolysis 169
Chapter 12 Gluconeogenesis, The Pentoseiiiiii Phosphate Pathway,
and Glycogen Metabolism 185
Chapter 13 The Citric Acid Cycle 199
Chapter 14 Electron Transporti i andiiiiii OxidativeiiiiiiPhosphorylation 213
Chapteri i 15 Photosynthesis 227
Chapter 16 Lipid Metabolism 241
Chapter 17 Amino Acidi i Metabolism 256
Chapter 18 Nucleotide Metabolism 269
Chapter 19 Nucleic Acids 284
Chapteri i 20 DNAi i Replication,i i Repair,i i andi i Recombination 300
Chapter 21 Transcriptioni i andiiiiiiRNAiiiiii Processing 315
Chapteri i 22 Proteini i Synthesis 330
Chapter 23 Recombinant DNA Technology 348
,Chapter 1iiIntroductioni i toi i Biochemistry
1) Which elements account for more than 97% of the weight of
mostiorganisms?
A)ii C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, Nii
D) Fe, C, H, O, P
E)iiCa2+, K+, Na+, Mg2+, Cl-
iAnswer: B
Page Ref: Section 2
2) Proteins in biological membranes may be
A) porous.
B) attached to the membrane surface.
C) span the membrane.
D) All of the above
E) B and C only
Answer: D
Page Ref: Section 3
3) Which statement about cellulose is false?
A) It is the most abundant polysaccharide in nature.
B) Its monomers are joined by glycosidic bonds.
C) It is present in the stems of flowering plants.
D) The hydroxyl groups of neighboring cellulose molecules interact to
formistrong, insoluble fibers.
E) It is a branched polymer of glucose.
Answer: E
Page Ref: Section 3
1
, 4) When Keqiiiii i of a reaction = 1, then
A) the forward reaction is faster than the reverse reaction.
B) the reverse reaction is faster than the forward reaction.
C) the forward and reverse reaction rate constants are equal.
D) more products are formed than reactants.
E) fewer products are formed than reactants.
Answer: C
Page Ref: Section 4
5) Which statement is true about a reaction with an equilibrium constant,
Keq,iequal to 1000?
A) The forward rate constant is 1000 times greater than the reverse
rateiconstant.
B) The forward rate constant is 3 times greater than reverse
rateiconstant.
C) The forward rate constant is 1000 times smaller than the reverse
rateiconstant.
D) The forward rate constant is 3 times smaller than the reverse
rateiconstant.
E) There is not enough information given to compare the forward
andireverse rate constants.
Answer: A
Page Ref: Section 4
6) The study of the energy changes during metabolic reactions is called ii .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological heat dynamics
Answer: D
Page Ref: Section 4
7) A spontaneous chemical reaction always has a change.
A) positive Gibbʹs free energy
B) negative Gibbʹs free energy
C) positive enthalpy
D) negative enthalpy
E) positive entropy
2
Chapteri i 1 Introductioni i toi i Biochemistry 1
Chapter 2 Water 10
Chapter 3 Amino Acidsiiiiii and 27
theii Primaryii Structuresii ofiProteins
Chapter 4 Proteins:iiiiii Three-Dimensionaliiiiii Structureandi i Function 46
Chapter 5 Properties ofi i Enzymes 65
Chapter 6 Mechanisms ofi i Enzymes 85
Chapter 7 Coenzymes andi i Vitamins 104
Chapter 8 Carbohydrates 119
Chapter 9 Lipids andi i Membranes 137
Chapteri i 10 Introductioni i toi i Metabolism 153
Chapter 11 Glycolysis 169
Chapter 12 Gluconeogenesis, The Pentoseiiiiii Phosphate Pathway,
and Glycogen Metabolism 185
Chapter 13 The Citric Acid Cycle 199
Chapter 14 Electron Transporti i andiiiiii OxidativeiiiiiiPhosphorylation 213
Chapteri i 15 Photosynthesis 227
Chapter 16 Lipid Metabolism 241
Chapter 17 Amino Acidi i Metabolism 256
Chapter 18 Nucleotide Metabolism 269
Chapter 19 Nucleic Acids 284
Chapteri i 20 DNAi i Replication,i i Repair,i i andi i Recombination 300
Chapter 21 Transcriptioni i andiiiiiiRNAiiiiii Processing 315
Chapteri i 22 Proteini i Synthesis 330
Chapter 23 Recombinant DNA Technology 348
,Chapter 1iiIntroductioni i toi i Biochemistry
1) Which elements account for more than 97% of the weight of
mostiorganisms?
A)ii C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, Nii
D) Fe, C, H, O, P
E)iiCa2+, K+, Na+, Mg2+, Cl-
iAnswer: B
Page Ref: Section 2
2) Proteins in biological membranes may be
A) porous.
B) attached to the membrane surface.
C) span the membrane.
D) All of the above
E) B and C only
Answer: D
Page Ref: Section 3
3) Which statement about cellulose is false?
A) It is the most abundant polysaccharide in nature.
B) Its monomers are joined by glycosidic bonds.
C) It is present in the stems of flowering plants.
D) The hydroxyl groups of neighboring cellulose molecules interact to
formistrong, insoluble fibers.
E) It is a branched polymer of glucose.
Answer: E
Page Ref: Section 3
1
, 4) When Keqiiiii i of a reaction = 1, then
A) the forward reaction is faster than the reverse reaction.
B) the reverse reaction is faster than the forward reaction.
C) the forward and reverse reaction rate constants are equal.
D) more products are formed than reactants.
E) fewer products are formed than reactants.
Answer: C
Page Ref: Section 4
5) Which statement is true about a reaction with an equilibrium constant,
Keq,iequal to 1000?
A) The forward rate constant is 1000 times greater than the reverse
rateiconstant.
B) The forward rate constant is 3 times greater than reverse
rateiconstant.
C) The forward rate constant is 1000 times smaller than the reverse
rateiconstant.
D) The forward rate constant is 3 times smaller than the reverse
rateiconstant.
E) There is not enough information given to compare the forward
andireverse rate constants.
Answer: A
Page Ref: Section 4
6) The study of the energy changes during metabolic reactions is called ii .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological heat dynamics
Answer: D
Page Ref: Section 4
7) A spontaneous chemical reaction always has a change.
A) positive Gibbʹs free energy
B) negative Gibbʹs free energy
C) positive enthalpy
D) negative enthalpy
E) positive entropy
2
