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



and Glycogen Metabolism
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Chapter 13
am The Citric Acid Cycle
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Chapter 14
am Electron Transport and Oxidative Phosphorylation
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Chapter 15
am Photosynthesis 227
Chapter 16
am Lipid Metabolism
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Chapter 17
am Amino Acid Metabolism
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Chapter 18
am Nucleotide Metabolism am 269
Chapter 19
am Nucleic Acids am 284
Chapter 20
am DNA Replication, Repair, and Recombination
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Chapter 21
am Transcription and RNA Processing am am am 315
Chapter 22
am Protein Synthesis am 330
Chapter 23
am Recombinant DNA Technology am am 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
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B) C, H, N, O, P, S
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C) C, H, N am am




D) Fe, C, H, O, P
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E) Ca2+, K+, Na+, Mg2+, Cl-
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Answer: B a m



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.
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C) span the membrane. am am




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



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, insol
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uble fibers. am




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



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 a m



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 a m



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 am am




Answer: D a m



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 am am am




B) negative Gibbʹs free energy am am am




C) positive enthalpy am




D) negative enthalpy am




E) positive entropy am




Answer: B a m



Page Ref: Section 4
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