Test Bank - Principles of Biochemistry, 5th Edition (Moran, 2012), Chapter 1-22 | All Chapters

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TESTBANK
PRINCIPLESOFBIOCHEMISTRY5THEDITION
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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
ss Introductionto Biochemistry s ss 1
Chapter 2
ss Water 10
Chapter 3
ss Amino Acids and the PrimaryStructures of Proteins
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Chapter 4
ss Proteins: Three-Dimensional Structure and Function
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Chapter 5
ss Properties of Enzymes ss ss 65
Chapter 6
ss Mechanisms of Enzymes ss ss 85
Chapter 7
ss Coenzymes and Vitamins ss ss 104
Chapter 8
ss Carbohydrates 119
Chapter 9
ss Lipids and Membranes
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Chapter 10
ss Introduction to Metabolism s ss 153
Chapter 11
ss Glycolysis 169
Chapter 12
ss Gluconeogenesis, The Pentose Phosphate Pathway, ss ss ss ss



and Glycogen Metabolism
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Chapter 13
ss TheCitric Acid Cycle
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Chapter 14
ss Electron Transport andOxidativePhosphorylation
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Chapter 15
ss Photosynthesis 227
Chapter 16
ss Lipid Metabolism
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Chapter 17
ss AminoAcid Metabolism
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Chapter 18
ss Nucleotide Metabolism ss 269
Chapter 19
ss Nucleic Acids ss 284
Chapter 20
ss DNAReplication, Repair, andyRecombination
s ss ss 300
Chapter 21
ss Transcription and RNA Processing ss ss ss 315
Chapter 22
ss ProteinySynthesis 330
Chapter 23
ss Recombinant DNA Technology ss ss 348

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Chapter1 Introductionto 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 ss ss ss ss ss




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




C) C, H, N ss ss




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




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




Answer: B s s



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. ss ss ss ss




C) span the membrane. ss ss




D) All of the above ss ss ss




E) B and C only
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Answer: D s s



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) Itsymonomers are joined by glycosidic bonds. ss ss ss ss ss




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,
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insolubl efibers.
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E) It is a branched polymer of glucose.
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Answer: E s s



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 s s



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 s s



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 ss ss




Answer: D s s



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 ss ss ss




B) negative Gibbʹs free energy ss ss ss




C) positive enthalpy ss




D) negative enthalpy ss




E) positive entropy ss




Answer: B s s



Page Ref: Section 4
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