,Contents
Chapter x Introduction x x to x x Biochemistry 1
x1
Chapter 2 Water 10
Chapter 3 Amino Acids x and the x Primary 27
x Structures x of xProteins
Chapter 4 Proteins: x x Three-Dimensional x x Structure and x 46
x Function
Chapter 5 Properties of x x Enzymes 65
Chapter 6 Mechanisms of x x Enzymes 85
Chapter 7 Coenzymes and x x Vitamins 104
Chapter 8 Carbohydrates 119
Chapter 9 Lipids and x x Membranes 137
Chapter x Introduction x x to x x Metabolism 153
x 10
Chapter 11 Glycolysis 169
Chapter 12 Gluconeogenesis, The Pentose x x Phosphate Pathway,
and Glycogen Metabolism 185
Chapter 13 The Citric Acid Cycle 199
Chapter 14 Electron Transport x x and x x Oxidative x 213
x Phosphorylation
Chapter x Photosynthesis 227
x 15
Chapter 16 Lipid Metabolism 241
Chapter 17 Amino Acid x x Metabolism 256
Chapter 18 Nucleotide Metabolism 269
Chapter 19 Nucleic Acids 284
Chapter x DNA x x Replication, x x Repair, x x and x 300
x 20 x Recombination
Chapter 21 Transcription x x and x x RNA x x Processing 315
Chapter x Protein x x Synthesis 330
x 22
Chapter 23 Recombinant DNA Technology 348
,Chapter 1 Introduction
x x to x Biochemistry
1) Which elements account for more than 97% of the weight of most
xorganisms?
A) C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, N
D) Fe, C, xH O, P
,
,
E) K+, Na+, Mg2+, Cl-
x Ca2+
2) Proteins
Answer: inB biological membranes may be
Page Ref: Section 2
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 form
xstrong, insoluble fibers.
E) It is a branched polymer of glucose.
Answer: E
Page Ref: Section 3
1
, 4) When Keq x x 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,
xequal to 1000?
A) The forward rate constant is 1000 times greater than the reverse rate
xconstant.
B) The forward rate constant is 3 times greater than reverse rate
xconstant.
C) The forward rate constant is 1000 times smaller than the reverse rate
xconstant.
D) The forward rate constant is 3 times smaller than the reverse rate
xconstant.
E) There is not
x enough information given to compare the forward and
xreverse rate xconstants.
Answer: A
Page Ref: Section 4
6) The study of the energy changes during metabolic reactions is called .
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
Chapter x Introduction x x to x x Biochemistry 1
x1
Chapter 2 Water 10
Chapter 3 Amino Acids x and the x Primary 27
x Structures x of xProteins
Chapter 4 Proteins: x x Three-Dimensional x x Structure and x 46
x Function
Chapter 5 Properties of x x Enzymes 65
Chapter 6 Mechanisms of x x Enzymes 85
Chapter 7 Coenzymes and x x Vitamins 104
Chapter 8 Carbohydrates 119
Chapter 9 Lipids and x x Membranes 137
Chapter x Introduction x x to x x Metabolism 153
x 10
Chapter 11 Glycolysis 169
Chapter 12 Gluconeogenesis, The Pentose x x Phosphate Pathway,
and Glycogen Metabolism 185
Chapter 13 The Citric Acid Cycle 199
Chapter 14 Electron Transport x x and x x Oxidative x 213
x Phosphorylation
Chapter x Photosynthesis 227
x 15
Chapter 16 Lipid Metabolism 241
Chapter 17 Amino Acid x x Metabolism 256
Chapter 18 Nucleotide Metabolism 269
Chapter 19 Nucleic Acids 284
Chapter x DNA x x Replication, x x Repair, x x and x 300
x 20 x Recombination
Chapter 21 Transcription x x and x x RNA x x Processing 315
Chapter x Protein x x Synthesis 330
x 22
Chapter 23 Recombinant DNA Technology 348
,Chapter 1 Introduction
x x to x Biochemistry
1) Which elements account for more than 97% of the weight of most
xorganisms?
A) C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, N
D) Fe, C, xH O, P
,
,
E) K+, Na+, Mg2+, Cl-
x Ca2+
2) Proteins
Answer: inB biological membranes may be
Page Ref: Section 2
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 form
xstrong, insoluble fibers.
E) It is a branched polymer of glucose.
Answer: E
Page Ref: Section 3
1
, 4) When Keq x x 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,
xequal to 1000?
A) The forward rate constant is 1000 times greater than the reverse rate
xconstant.
B) The forward rate constant is 3 times greater than reverse rate
xconstant.
C) The forward rate constant is 1000 times smaller than the reverse rate
xconstant.
D) The forward rate constant is 3 times smaller than the reverse rate
xconstant.
E) There is not
x enough information given to compare the forward and
xreverse rate xconstants.
Answer: A
Page Ref: Section 4
6) The study of the energy changes during metabolic reactions is called .
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
