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TESTBANK dt




PRINCIPLES OF BIOCHEMISTRY 5TH 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
dt Introduction to Biochemistry dt dt 1
Chapter 2
dt Water 10
Chapter 3
dt Amino Acids and the Primary Structures of Proteins
dt dt dt dt dt dt dt 27
Chapter 4
dt Proteins: Three-Dimensional Structure and Function
dt dt dt dt 46
Chapter 5
dt Properties of Enzymes dt dt 65
Chapter 6
dt Mechanisms of Enzymes dt dt 85
Chapter 7
dt Coenzymes and Vitamins dt dt 104
Chapter 8
dt Carbohydrates 119
Chapter 9
dt Lipids and Membranes
dt dt 137
Chapter 10
dt Introduction to Metabolism dt dt 153
Chapter 11
dt Glycolysis 169
Chapter 12
dt Gluconeogenesis, The Pentose Phosphate Pathway, dt dt dt dt



and Glycogen Metabolism
dt dt 185
Chapter 13
dt The Citric Acid Cycle
dt dt dt 199
Chapter 14
dt Electron Transport and Oxidative Phosphorylation
dt dt dt dt 213
Chapter 15
dt Photosynthesis 227
Chapter 16
dt Lipid Metabolism
dt 241
Chapter 17
dt Amino Acid Metabolism
dt dt 256
Chapter 18
dt Nucleotide Metabolism dt 269
Chapter 19
dt Nucleic Acids dt 284
Chapter 20
dt DNA Replication, Repair, and Recombination
dt dt dt dt 300
Chapter 21
dt Transcription and RNA Processing dt dt dt 315
Chapter 22
dt Protein Synthesis dt 330
Chapter 23
dt Recombinant DNA Technology dt dt 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 dt dt dt dt dt




B) C, H, N, O, P, S dt dt dt dt dt




C) C, H, N dt dt




D) Fe, C, H, O, P dt dt dt dt




E) Ca2+, K+, Na+, Mg2+, Cl- dt dt dt dt




Answer: B d t



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. dt dt dt dt




C) span the membrane. dt dt




D) All of the above dt dt dt




E) B and C only
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Answer: D d t



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.
dt




E) It is a branched polymer of glucose.
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Answer: E d t



Page Ref: Section 3
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1

, 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 d t



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.
dt dt dt dt dt dt dt dt dt dt dt dt




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.
dt dt dt dt dt dt dt dt dt dt dt dt




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.
dt dt dt dt dt dt dt dt dt dt dt dt dt




Answer: A d t



Page Ref: Section 4
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6) The study of the energy changes during metabolic reactions is called
dt dt dt dt dt dt dt dt dt dt .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological heat dynamics dt dt




Answer: D d t



Page Ref: Section 4
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7) A spontaneous chemical reaction always has a
dt dt dt dt dt dt change.
A) positive Gibbʹs free energy dt dt dt




B) negative Gibbʹs free energy dt dt dt




C) positive enthalpy dt




D) negative enthalpy dt




E) positive entropy dt




Answer: B d t



Page Ref: Section 4
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2