,Contents
Chapter 1 Introduction to Biochemistry 1
Chapter 2 Water 10
Chapter 3 Amino Acids and the Primary Structures of Proteins 27
Chapter 4 Proteins: Three-Dimensional Structure and Function 46
Chapter 5 Properties of Enzymes 65
Chapter 6 Mechanisms of Enzymes 85
Chapter 7 Coenzymes and Vitamins 104
Chapter 8 Carbohydrates 119
Chapter 9 Lipids and Membranes 137
Chapter 10 Introduction to Metabolism 153
Chapter 11 Glycolysis 169
Chapter 12 Gluconeogenesis, The Pentose Phosphate Pathway,
and Glycogen Metabolism 185
Chapter 13 The Citric Acid Cycle 199
Chapter 14 Electron Transport and Oxidative Phosphorylation 213
Chapter 15 Photosynthesis 227
Chapter 16 Lipid Metabolism 241
Chapter 17 Amino Acid Metabolism 256
Chapter 18 Nucleotide Metabolism 269
Chapter 19 Nucleic Acids 284
Chapter 20 DNA Replication, Repair, and Recombination 300
Chapter 21 Transcription and RNA Processing 315
Chapter 22 Protein Synthesis 330
Chapter 23 Recombinant DNA Technology 348
,Chapter 1 Introduction to Biochemistry
1) Which elements account for more than 97% of the weight of most organisms?
A) C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, N
D) Fe, C, H, O, P
E) Ca2+, K+, Na+, Mg2+, Cl-
Answer: 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) Whicht y statementtyabouttycellulosetyistyfalse?
A) Itt y istythetymosttyabundantt y polysaccharidet y intynature.
B) Itstymonomerst y arety joinedt y bytyglycosidict y bonds.
C) Ittyistypresenttyintythetystemstyoftyfloweringtyplants.
D) Thetyhydroxyltygroupstyoftyneighboringtycellulosetymoleculestyinteracttytotyformtystrong,tyinsol
ubletyfibers.
E) Itt y istyat y branchedtypolymerty oftyglucose.
Answer:t y E
PagetyRef:ty Sectionty3
1
, 4) WhentyKeqtyoftyatyreactionty=ty1,tythen
A) thetyforwardtyreactiontyistyfastertythant y thetyreverset y reaction.
B) thetyreverset y reactiontyistyfastert y thantythetyforwardtyreaction.
C) thetyforwardtyandtyreverset y reactiontyratetyconstantstyaret y equal.
D) moretyproductstyaret y formedtythant y reactants.
E) fewert y productstyaret y formedtythant y reactants.
Answer:t y C
PagetyRef:ty Sectionty4
5) Whicht y statementtyistytruetyaboutt y at y reactiontywithtyantyequilibriumtyconstant,t y Keq,tyequalt y toty1000?
A) Thet yforwardtyratetyconstantt y isty1000tytimestygreatert y thant y thetyreverset y ratetyconstant.
B) Thet yforwardtyratetyconstantt y isty3t y timestygreatert y thantyreverset y ratetyconstant.
C) Thet yforwardtyratetyconstantt y isty1000tytimestysmallertythantythetyreverset y ratetyconstant.
D) Thet yforwardtyratetyconstantt y isty3t y timestysmallertythant ythetyreverset y ratetyconstant.
E) Theretyistynott yenought y informationt y giventytotycomparetythetyforwardtyandtyreverset y ratetyconsta
nts.
Answer:t y A
PagetyRef:ty Sectionty4
6) Thety studyt y oftythetyenergyt y changest y duringt y metabolictyreactionstyistycalledty .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicaltyheatt y dynamics
Answer:t y D
PagetyRef:ty Sectionty4
7) Atyspontaneoust ychemicalt y reactiontyalwayst y hast y at y change.
ty
A) positivet y Gibbʹstyfreetyenergy
B) negativetyGibbʹstyfreet y energy
C) positivet y enthalpy
D) negativet y enthalpy
E) positivet y entropy
Answer:t y B
PagetyRef:ty Sectionty4
2
Chapter 1 Introduction to Biochemistry 1
Chapter 2 Water 10
Chapter 3 Amino Acids and the Primary Structures of Proteins 27
Chapter 4 Proteins: Three-Dimensional Structure and Function 46
Chapter 5 Properties of Enzymes 65
Chapter 6 Mechanisms of Enzymes 85
Chapter 7 Coenzymes and Vitamins 104
Chapter 8 Carbohydrates 119
Chapter 9 Lipids and Membranes 137
Chapter 10 Introduction to Metabolism 153
Chapter 11 Glycolysis 169
Chapter 12 Gluconeogenesis, The Pentose Phosphate Pathway,
and Glycogen Metabolism 185
Chapter 13 The Citric Acid Cycle 199
Chapter 14 Electron Transport and Oxidative Phosphorylation 213
Chapter 15 Photosynthesis 227
Chapter 16 Lipid Metabolism 241
Chapter 17 Amino Acid Metabolism 256
Chapter 18 Nucleotide Metabolism 269
Chapter 19 Nucleic Acids 284
Chapter 20 DNA Replication, Repair, and Recombination 300
Chapter 21 Transcription and RNA Processing 315
Chapter 22 Protein Synthesis 330
Chapter 23 Recombinant DNA Technology 348
,Chapter 1 Introduction to Biochemistry
1) Which elements account for more than 97% of the weight of most organisms?
A) C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, N
D) Fe, C, H, O, P
E) Ca2+, K+, Na+, Mg2+, Cl-
Answer: 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) Whicht y statementtyabouttycellulosetyistyfalse?
A) Itt y istythetymosttyabundantt y polysaccharidet y intynature.
B) Itstymonomerst y arety joinedt y bytyglycosidict y bonds.
C) Ittyistypresenttyintythetystemstyoftyfloweringtyplants.
D) Thetyhydroxyltygroupstyoftyneighboringtycellulosetymoleculestyinteracttytotyformtystrong,tyinsol
ubletyfibers.
E) Itt y istyat y branchedtypolymerty oftyglucose.
Answer:t y E
PagetyRef:ty Sectionty3
1
, 4) WhentyKeqtyoftyatyreactionty=ty1,tythen
A) thetyforwardtyreactiontyistyfastertythant y thetyreverset y reaction.
B) thetyreverset y reactiontyistyfastert y thantythetyforwardtyreaction.
C) thetyforwardtyandtyreverset y reactiontyratetyconstantstyaret y equal.
D) moretyproductstyaret y formedtythant y reactants.
E) fewert y productstyaret y formedtythant y reactants.
Answer:t y C
PagetyRef:ty Sectionty4
5) Whicht y statementtyistytruetyaboutt y at y reactiontywithtyantyequilibriumtyconstant,t y Keq,tyequalt y toty1000?
A) Thet yforwardtyratetyconstantt y isty1000tytimestygreatert y thant y thetyreverset y ratetyconstant.
B) Thet yforwardtyratetyconstantt y isty3t y timestygreatert y thantyreverset y ratetyconstant.
C) Thet yforwardtyratetyconstantt y isty1000tytimestysmallertythantythetyreverset y ratetyconstant.
D) Thet yforwardtyratetyconstantt y isty3t y timestysmallertythant ythetyreverset y ratetyconstant.
E) Theretyistynott yenought y informationt y giventytotycomparetythetyforwardtyandtyreverset y ratetyconsta
nts.
Answer:t y A
PagetyRef:ty Sectionty4
6) Thety studyt y oftythetyenergyt y changest y duringt y metabolictyreactionstyistycalledty .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicaltyheatt y dynamics
Answer:t y D
PagetyRef:ty Sectionty4
7) Atyspontaneoust ychemicalt y reactiontyalwayst y hast y at y change.
ty
A) positivet y Gibbʹstyfreetyenergy
B) negativetyGibbʹstyfreet y energy
C) positivet y enthalpy
D) negativet y enthalpy
E) positivet y entropy
Answer:t y B
PagetyRef:ty Sectionty4
2
