TEST BANK for principles of biochemistry by Moran , Horton . 100% A+ COMPLETE GUIDE

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



and Glycogen Metabolism
v v 185
Chapter 13
v The Citric Acid Cycle
v v v 199
Chapter 14
v Electron Transport and Oxidative Phosphorylation
v v v v 213
Chapter 15
v Photosynthesis 227
Chapter 16
v Lipid Metabolism
v 241
Chapter 17
v Amino Acid Metabolism
v v 256
Chapter 18
v Nucleotide Metabolism v 269
Chapter 19
v Nucleic Acids v 284
Chapter 20
v DNA Replication, Repair, and Recombination
v v v v 300
Chapter 21
v Transcription and RNA Processing v v v 315
Chapter 22
v Protein Synthesis v 330
Chapter 23
v Recombinant DNA Technology v v 348

,Chapter 1 Introduction to Biochemistry
v v v




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
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B) C, H, N, O, P, S
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C) C, H, Nv v




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




E) Ca 2+, K+, Na +, Mg2+, Cl- v v v v




Answer: B v



Page Ref: Section 2
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2) Proteins in biological membranes may be
v v v v v




A) porous.
B) attached to the membrane surface. v v v v




C) span the membrane. v v




D) All of the above
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E) B and C only
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Answer: D v



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 fib
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ers.
E) It is a branched polymer of glucose.
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Answer: E v



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 v



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 v



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




Answer: D v



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




B) negative Gibbʹs free energy v v v




C) positive enthalpy v




D) negative enthalpy v




E) positive entropy v




Answer: B v



Page Ref: Section 4
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