,Contents
Chapter 1 ui Introduction to Biochemistry ui ui 1
Chapter 2
ui Water 10
Chapter 3
ui Amino Acids and the Primary Structures of Proteins
ui ui ui ui ui ui ui 27
Chapter 4
ui Proteins: Three-Dimensional Structure and Function
ui ui ui ui 46
Chapter 5
ui Properties of Enzymes ui ui 65
Chapter 6
ui Mechanisms of Enzymes ui ui 85
Chapter 7
ui Coenzymes and Vitamins ui ui 104
Chapter 8
ui Carbohydrates 119
Chapter 9
ui Lipids and Membranes
ui ui 137
Chapter 10
ui Introduction to Metabolism ui ui 153
Chapter 11
ui Glycolysis 169
Chapter 12
ui Gluconeogenesis, The Pentose Phosphate Pathway, ui ui ui ui
and Glycogen Metabolism
ui ui 185
Chapter
ui 13 The Citric Acid Cycle
ui ui ui 199
Chapter
ui 14 Electron Transport and Oxidative Phosphorylation
ui ui ui ui 213
Chapter
ui 15 Photosynthesis 227
Chapter
ui 16 Lipid Metabolism
ui 241
Chapter
ui 17 Amino Acid Metabolism
ui ui 256
Chapter
ui 18 Nucleotide Metabolism ui 269
Chapter
ui 19 Nucleic Acids ui 284
Chapter ui 20 DNA Replication, Repair, and Recombination
ui ui ui ui 300
Chapter
ui 21 Transcription and RNA Processing ui ui ui 315
Chapter
ui 22 Protein Synthesis
ui 330
Chapter
ui 23 Recombinant DNA Technology ui ui 348
,Chapter 1 Introduction to Biochemistry
ui ui ui
1) Whichu i elementsu i accountu i foru i moreu i thanu i 97%u i of u i theu i weight u i of u i most u i organisms?
A) C,u i H, u i N, u i Mg,u i O, S
B) C,u i H,u i N,u i O, u i P, u i S
C) C,u i H,u i N
D) Fe,u i C, u i H, u i O, u i P
E) Ca2+,u i K+,u i Na+,u i Mg2+,u i Cl-
Answer: u i u i B
Pageu i Ref:u i Sectionu i 2
2) Proteinsu i inu i biological u i membranesu i mayu i be
A) porous.
B) attachedu i tou i theu i membraneu i surface.
C) spanu i theu i membrane.
D) Allu i ofu i theu i above
E) Bu i andu i C u i only
Answer:u i u i D
Pageu i Ref:u i Sectionu i 3
3) Whichu i statement u i aboutu i celluloseu i isu i false?
A) Itu i isu i theu i most u i abundant u i polysaccharideu i inu i nature.
B) Itsu i monomersu i areu i joinedu i byu i glycosidicu i bonds.
C) Itu i isu i present u i inu i theu i stemsu i of u i flowering u i plants.
D) Theu i hydroxyl u i groupsu i of u i neighboring u i celluloseu i moleculesu i interact u i tou i formu
i strong, uiinsolubleu i fibers.
E) Itu i isu i au i branchedu i polymeru i of u i glucose.
Answer: u i u i E
Pageu i Ref:u i Sectionu i 3
1
, 4) Whenu i K equ i of u i au i reactionu i =u i 1,u i then
A) theu i forwardu i reactionu i isu i fasteru i thanu i theu i reverseu i reaction.
B) theu i reverseu i reactionu i isu i fasteru i thanu i theu i forwardu i reaction.
C) theu i forwardu i andu i reverseu i reactionu i rateu i constantsu i areu i equal.
D) moreu i productsu i areu i formedu i thanu i reactants.
E) feweru i productsu i areu i formedu i thanu i reactants.
Answer:u i u i C
Pageu i Ref:u i Sectionu i 4
5) Whichu i statementu i isu i trueu i aboutu i au i reactionu i withu i anu i equilibriumu i constant,u i Keq,u i equal u i t
ou i 1000?
A) Theu i forwardu i rateu i constant u i isu i 1000u i timesu i greateru i thanu i theu i reverseu i rateu i constant.
B) Theu i forwardu i rateu i constantu i isu i 3u i timesu i greateru i thanu i reverseu i rateu i constant.
C) Theu i forwardu i rateu i constantu i isu i 1000u i timesu i smalleru i thanu i theu i reverseu i rateu i constant.
D) Theu i forwardu i rateu i constantu i isu i 3 u i timesu i smalleru i thanu i theu i reverseu i rateu i constant.
E) Thereu i isu i not u i enoughu i informationu i givenu i tou i compareu i theu i forwardu i andu i rever
seu i rateuiconstants.
Answer: u i u i A
Pageu i Ref:u i Sectionu i 4
6) Theu i studyu i of u i theu i energyu i changesu i during u i metabolicu i reactionsu i isu i calledu i .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicalu i heat u i dynamics
Answer:u i u i D
Pageu i Ref:u i Sectionu i 4
7) Au i spontaneousu i chemicalu i reactionu i alwaysu i hasu i au i change.
ui
A) positiveu i Gibbʹsu i freeu i energy
B) negativeu i Gibbʹsu i freeu i energy
C) positiveu i enthalpy
D) negativeu i enthalpy
E) positiveu i entropy
Answer: u i u i B
Pageu i Ref:u i Sectionu i 4
2
Chapter 1 ui Introduction to Biochemistry ui ui 1
Chapter 2
ui Water 10
Chapter 3
ui Amino Acids and the Primary Structures of Proteins
ui ui ui ui ui ui ui 27
Chapter 4
ui Proteins: Three-Dimensional Structure and Function
ui ui ui ui 46
Chapter 5
ui Properties of Enzymes ui ui 65
Chapter 6
ui Mechanisms of Enzymes ui ui 85
Chapter 7
ui Coenzymes and Vitamins ui ui 104
Chapter 8
ui Carbohydrates 119
Chapter 9
ui Lipids and Membranes
ui ui 137
Chapter 10
ui Introduction to Metabolism ui ui 153
Chapter 11
ui Glycolysis 169
Chapter 12
ui Gluconeogenesis, The Pentose Phosphate Pathway, ui ui ui ui
and Glycogen Metabolism
ui ui 185
Chapter
ui 13 The Citric Acid Cycle
ui ui ui 199
Chapter
ui 14 Electron Transport and Oxidative Phosphorylation
ui ui ui ui 213
Chapter
ui 15 Photosynthesis 227
Chapter
ui 16 Lipid Metabolism
ui 241
Chapter
ui 17 Amino Acid Metabolism
ui ui 256
Chapter
ui 18 Nucleotide Metabolism ui 269
Chapter
ui 19 Nucleic Acids ui 284
Chapter ui 20 DNA Replication, Repair, and Recombination
ui ui ui ui 300
Chapter
ui 21 Transcription and RNA Processing ui ui ui 315
Chapter
ui 22 Protein Synthesis
ui 330
Chapter
ui 23 Recombinant DNA Technology ui ui 348
,Chapter 1 Introduction to Biochemistry
ui ui ui
1) Whichu i elementsu i accountu i foru i moreu i thanu i 97%u i of u i theu i weight u i of u i most u i organisms?
A) C,u i H, u i N, u i Mg,u i O, S
B) C,u i H,u i N,u i O, u i P, u i S
C) C,u i H,u i N
D) Fe,u i C, u i H, u i O, u i P
E) Ca2+,u i K+,u i Na+,u i Mg2+,u i Cl-
Answer: u i u i B
Pageu i Ref:u i Sectionu i 2
2) Proteinsu i inu i biological u i membranesu i mayu i be
A) porous.
B) attachedu i tou i theu i membraneu i surface.
C) spanu i theu i membrane.
D) Allu i ofu i theu i above
E) Bu i andu i C u i only
Answer:u i u i D
Pageu i Ref:u i Sectionu i 3
3) Whichu i statement u i aboutu i celluloseu i isu i false?
A) Itu i isu i theu i most u i abundant u i polysaccharideu i inu i nature.
B) Itsu i monomersu i areu i joinedu i byu i glycosidicu i bonds.
C) Itu i isu i present u i inu i theu i stemsu i of u i flowering u i plants.
D) Theu i hydroxyl u i groupsu i of u i neighboring u i celluloseu i moleculesu i interact u i tou i formu
i strong, uiinsolubleu i fibers.
E) Itu i isu i au i branchedu i polymeru i of u i glucose.
Answer: u i u i E
Pageu i Ref:u i Sectionu i 3
1
, 4) Whenu i K equ i of u i au i reactionu i =u i 1,u i then
A) theu i forwardu i reactionu i isu i fasteru i thanu i theu i reverseu i reaction.
B) theu i reverseu i reactionu i isu i fasteru i thanu i theu i forwardu i reaction.
C) theu i forwardu i andu i reverseu i reactionu i rateu i constantsu i areu i equal.
D) moreu i productsu i areu i formedu i thanu i reactants.
E) feweru i productsu i areu i formedu i thanu i reactants.
Answer:u i u i C
Pageu i Ref:u i Sectionu i 4
5) Whichu i statementu i isu i trueu i aboutu i au i reactionu i withu i anu i equilibriumu i constant,u i Keq,u i equal u i t
ou i 1000?
A) Theu i forwardu i rateu i constant u i isu i 1000u i timesu i greateru i thanu i theu i reverseu i rateu i constant.
B) Theu i forwardu i rateu i constantu i isu i 3u i timesu i greateru i thanu i reverseu i rateu i constant.
C) Theu i forwardu i rateu i constantu i isu i 1000u i timesu i smalleru i thanu i theu i reverseu i rateu i constant.
D) Theu i forwardu i rateu i constantu i isu i 3 u i timesu i smalleru i thanu i theu i reverseu i rateu i constant.
E) Thereu i isu i not u i enoughu i informationu i givenu i tou i compareu i theu i forwardu i andu i rever
seu i rateuiconstants.
Answer: u i u i A
Pageu i Ref:u i Sectionu i 4
6) Theu i studyu i of u i theu i energyu i changesu i during u i metabolicu i reactionsu i isu i calledu i .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicalu i heat u i dynamics
Answer:u i u i D
Pageu i Ref:u i Sectionu i 4
7) Au i spontaneousu i chemicalu i reactionu i alwaysu i hasu i au i change.
ui
A) positiveu i Gibbʹsu i freeu i energy
B) negativeu i Gibbʹsu i freeu i energy
C) positiveu i enthalpy
D) negativeu i enthalpy
E) positiveu i entropy
Answer: u i u i B
Pageu i Ref:u i Sectionu i 4
2
