PRINCIPLESOFBIOCHEMISTRY5TH EDITION
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Laurence Moran, Robert Horton, Gray Scrimgeour & Marc Perry
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,Principles of Biochemistry, 5th Edition Test Bank By: Moran, Horton, Scrimgeour, Perry
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Contents:
Chapter 1
c Introduction to Biochemistry c c 1
Chapter 2
c Water 10
Chapter 3
c Amino Acids and the Primary Structures of Proteins
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Chapter 4
c Proteins: Three-Dimensional Structure and Function
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Chapter 5
c Properties of Enzymes c c 65
Chapter 6
c Mechanisms of Enzymes c c 85
Chapter 7
c Coenzymes and Vitamins c c 104
Chapter 8
c Carbohydrates 119
Chapter 9
c Lipids and Membranes
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Chapter 10
c Introduction to Metabolism c c 153
Chapter 11
c Glycolysis 169
Chapter 12
c Gluconeogenesis, The Pentose Phosphate Pathway, c c c c
and Glycogen Metabolism
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Chapter 13
c The Citric Acid Cycle
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Chapter 14
c Electron Transport and Oxidative Phosphorylation
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Chapter 15
c Photosynthesis 227
Chapter 16
c Lipid Metabolism
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Chapter 17
c Amino Acid Metabolism
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Chapter 18
c Nucleotide Metabolism c 269
Chapter 19
c Nucleic Acids c 284
Chapter 20
c DNA Replication, Repair, and Recombination
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Chapter 21
c Transcription and RNA Processing c c c 315
Chapter 22
c Protein Synthesis c 330
Chapter 23
c Recombinant DNA Technology c c 348
,Chapter 1 Introduction to Biochemistry
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1) Which elements account for more than 97% of the weight of most organisms?
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A) C, H, N, Mg, O, S c c c c c
B) C, H, N, O, P, S c c c c c
C) C, H, N c c
D) Fe, C, H, O, P c c c c
E) Ca2+, K+, Na+, Mg2+, Cl- c c c c
Answer: B c
Page Ref: Section 2
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2) Proteins in biological membranes may be
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A) porous.
B) attached to the membrane surface. c c c c
C) span the membrane. c c
D) All of the above c c c
E) B and C only
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Answer: D c
Page Ref: Section 3
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3) Which statement about cellulose is false?
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A) It is the most abundant polysaccharide in nature.
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B) Its monomers are joined by glycosidic bonds.
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C) It is present in the stems of flowering plants.
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D) The hydroxyl groups of neighboring cellulose molecules interact to form strong, insoluble
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fibers.
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E) It is a branched polymer of glucose.
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Answer: E c
Page Ref: Section 3
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, 4) When Keq of a reaction =1, then
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A) the forward reaction is faster than the reverse reaction.
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B) the reverse reaction is faster than the forward reaction.
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C) the forward and reverse reaction rate constants are equal.
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D) more products are formed than reactants.
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E) fewer products are formed than reactants.
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Answer: C c
Page Ref: Section 4
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5) Which statement is true about a reaction with an equilibrium constant, Keq, equal to 1000?
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A) The forward rate constant is 1000 times greater than the reverse rate constant.
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B) The forward rate constant is 3 times greater than reverse rate constant.
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C) The forward rate constant is 1000 times smaller than the reverse rate constant.
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D) The forward rate constant is 3 times smaller than the reverse rate constant.
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E) There is not enough information given to compare the forward and reverse rate constants.
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Answer: A c
Page Ref: Section 4
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6) The study of the energy changes during metabolic reactions is called
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A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological heat dynamics c c
Answer: D c
Page Ref: Section 4
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7) A spontaneous chemical reaction always has a
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A) positive Gibbʹs free energy c c c
B) negative Gibbʹs free energy c c c
C) positive enthalpy c
D) negative enthalpy c
E) positive entropy c
Answer: B c
Page Ref: Section 4
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