Test Bank Complete_
Principles of Biochemistry 4th Edition,
By Moran, Horton, Scrimgeour, Perry, & Rawn
4th Edition
,CHAPTER 1: INTRODUCTION TO BIOCHEMISTRY 4
CHAPTER 2: WATER 19
CHAPTER 3: AMINO ACIDS AND THE PRIMARY STRUCTURES OF PROTEINS 52
CHAPTER 4: PROTEINS: THREE-DIMENSIONAL STRUCTURE AND FUNCTION 88
CHAPTER 5: PROPERTIES OF ENZYMES 124
CHAPTER 6: MECHANISMS OF ENZYMES 157
CHAPTER 7: COENZYMES AND VITAMINS 187
CHAPTER 8: CARBOHYDRATES 213
CHAPTER 9: LIPIDS AND MEMBRANES 238
CHAPTER 10: INTRODUCTION TO METABOLISM 265
CHAPTER 11: GLYCOLYSIS 293
CHAPTER 12: GLUCONEOGENESIS, THE PENTOSE PHOSPHATE PATHWAY, AND GLYCOGEN METABOLISM
322
CHAPTER 13: THE CITRIC ACID CYCLE 346
CHAPTER 14: ELECTRON TRANSPORT AND OXIDATIVE PHOSPHORYLATION 373
CHAPTER 15: PHOTOSYNTHESIS 399
CHAPTER 16: LIPID METABOLISM 425
CHAPTER 17: AMINO ACID METABOLISM 450
CHAPTER 18: NUCLEOTIDE METABOLISM 475
CHAPTER 19: NUCLEIC ACIDS 499
CHAPTER 20: DNA REPLICATION, REPAIR, AND RECOMBINATION 530
CHAPTER 21: TRANSCRIPTION AND RNA PROCESSING 558
CHAPTER 22: PROTEIN SYNTHESIS 586
,CHAPTER 23: RECOMBINANT DNA TECHNOLOGY 617
,Chapter 1: Introduction To Biochemistry
MULTIPLE CHOICE
1. Which Elements Account For More Than 97% Of The Weight Of Most
Organisms?
A) C, H, N, Mg, O, S
B) C, H, N, O, P, S
C) C, H, N
D) Fe, C, H, O, P
E) Ca²⁺, K⁺, Na⁺, Mg²⁺, Cl⁻
ANS: B
Feedback:
The Primary Elements Making Up The Majority Of Biological Mass Are Carbon (C),
Hydrogen (H), Nitrogen (N), Oxygen (O), Phosphorus (P), And Sulfur (S).
Page Ref: Section 2
2. Proteins In Biological Membranes May Be
A) Porous.
B) Attached To The Membrane Surface.
C) Span The Membrane.
D) All Of The Above
E) B And C Only
ANS: D
Feedback:
Proteins Can Indeed Be Porous, Attached To The Membrane, Or Span The
Membrane, Contributing To Various Functions.
Page Ref: Section 3
3. Which Statement About Cellulose Is False?
A) It Is The Most Abundant Polysaccharide In Nature.
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, B) Its Monomers Are Joined By Glycosidic Bonds.
C) It Is Present In The Stems Of Flowering Plants.
D) The Hydroxyl Groups Of Neighboring Cellulose Molecules Interact To Form
Strong, Insoluble Fibers.
E) It Is A Branched Polymer Of Glucose.
ANS: E
Feedback:
Cellulose Is A Linear Polymer Of Glucose, Not Branched, Making It Distinct From
Starch.
Page Ref: Section 3
4. When Keq Of A Reaction = 1, Then
A) The Forward Reaction Is Faster Than The Reverse Reaction.
B) The Reverse Reaction Is Faster Than The Forward Reaction.
C) The Forward And Reverse Reaction Rate Constants Are Equal.
D) More Products Are Formed Than Reactants.
E) Fewer Products Are Formed Than Reactants.
ANS: C
Feedback:
An Equilibrium Constant (Keq) Of 1 Indicates That The Rates Of The Forward And
Reverse Reactions Are Equal.
Page Ref: Section 4
5. Which Statement Is True About A Reaction With An Equilibrium Constant, Keq,
Equal To 1000?
A) The Forward Rate Constant Is 1000 Times Greater Than The Reverse Rate
Constant.
B) The Forward Rate Constant Is 3 Times Greater Than Reverse Rate Constant.
C) The Forward Rate Constant Is 1000 Times Smaller Than The Reverse Rate
Constant.
D) The Forward Rate Constant Is 3 Times Smaller Than The Reverse Rate Constant.
E) There Is Not Enough Information Given To Compare The Forward And Reverse
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