Principles of Biochemistry, 5thEdition Test Bank By: Moran, Horton, Scrimgeour, Perry

TESTBANK |




PRINCIPLES OF BIOCHEMISTRY 5TH EDITION
| | | |



Laurence |Moran, |Robert |Horton, |Gray |Scrimgeour |& |Marc |Perry

,Principles |of |Biochemistry, |5th |Edition |Test |Bank |By: |Moran, |Horton, |Scrimgeour, |Perry



Contents:
Chapter |1 Introduction |to |Biochemistry 1
Chapter |2 Water 10
Chapter |3 Amino |Acids |and |the |Primary |Structures |of |Proteins 27
Chapter |4 Proteins: |Three-Dimensional |Structure |and |Function 46
Chapter |5 Properties |of |Enzymes 65
Chapter |6 Mechanisms |of |Enzymes 85
Chapter |7 Coenzymes |and |Vitamins 104
Chapter |8 Carbohydrates 119
Chapter |9 Lipids |and |Membranes 137
Chapter |10 Introduction |to |Metabolism 153
Chapter |11 Glycolysis 169
Chapter |12 Gluconeogenesis, |The |Pentose |Phosphate |Pathway,
and |Glycogen |Metabolism 185
Chapter |13 The |Citric |Acid |Cycle 199
Chapter |14 Electron |Transport |and |Oxidative |Phosphorylation 213
Chapter |15 Photosynthesis 227
Chapter |16 Lipid |Metabolism 241
Chapter |17 Amino |Acid |Metabolism 256
Chapter |18 Nucleotide |Metabolism 269
Chapter |19 Nucleic |Acids 284
Chapter |20 DNA |Replication, |Repair, |and |Recombination 300
Chapter |21 Transcription |and |RNA |Processing 315
Chapter |22 Protein |Synthesis 330
Chapter |23 Recombinant |DNA |Technology 348

,Chapter 1 Introduction to Biochemistry
| | |




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-

Answer: | B
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

Answer: | D
Page |Ref: | Section | 3


3) Which | statement |about | cellulose |is |false?
A) It | is |the |most |abundant | polysaccharide | in |nature.
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.

Answer: | E
Page |Ref: | Section | 3




1

, 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.

Answer: | C
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 | rate
|constants.



Answer: | A
Page |Ref: | Section | 4


6) The | study | of |the |energy | changes | during | metabolic |reactions | is |called .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biological |heat | dynamics

Answer: | D
Page |Ref: | Section | 4


7) A |spontaneous | chemical | reaction |always | has | a change.
A) positive | Gibbʹs |free | energy
B) negative |Gibbʹs |free | energy
C) positive |enthalpy
D) negative |enthalpy
E) positive |entropy

Answer: | B
Page |Ref: | Section | 4




2