CHE 4342 EXAM STUDY QUESTIONS AND
100% CORRECT ANSWERS!!
Which of the following statements is wrong?
A. The sense strand has the same sequence as the mRNA
B. The antisense strand is complimentary to the mRNA
C. The antisense strand is transcribed
D. The antisense strand is the coding strand
D. The antisense strand is the coding strand
Which is not a step in the PCR protocol?
I. Heat to separate strands
II. Hybridize primers
III. Remove nucleotides to initiate DNA synthesis
IV. Rapidly cool to anneal the primers
A. I only
B. II, III only
C. IV only
D. III only
E. none of the above are wrong
D. III only
Which contributes to the phase transition in the bilayer?
I. Transition temperature decreases with chain length, saturation
II. Transition temperature increases with cholesterol
III. Transition temperature increases with chain length, saturation.
A. I, II
B. II only
C. I only
D. III only
E. II,III
,D. III only
Which of the following is true of the Kv channels?
I. Triggered by a positively charged helix
II. T1 domain precedes the transmembrane domain
III. As membrane potential is decreased, the S4 helix is pulled to the extracellular side
IV. The inactivation ball pulls the channel to the external side of the cell
A. I only
B. I,II
C. I, II, III
D. III, IV
E. I, II, III, IV
B. I,II
In the pentose phosphate pathway, to make 6-phosphoglucono-δ-lactone using glucose-6-
phosphate dehydrogenase from G6P, what occurs?
a. A direct hydride transfer to make NADPH
b. The reaction is specific for NADPH
c. NADP+ inhibits the reaction
d. An aldehyde is oxidized to a lactone
e. A and D are correct
e. A and D are correct
Which is the correct order for Odd number fatty acid oxidation?
I. Mutase rearranges CO2 to C3 and moves acetyl CoA from C1-C2 to C1-C3
II. Carboxylase reaction occurs
III. Racemase rearranges to R configuration
IV. Mutase rearranges CO2 to C3 and moves acetyl CoA from C1-C2 to C2-C3
A. I, III, II
B. II, III, I
C. II, III, IV
, D. III, I, II
E. None of the above
B. II, III, I
Which of these are correct factors that play a role in chain length control?
I. The interior cleft that accommodates growing polyketides.
II. Tailoring using enzymes.
III. The exterior cleft accommodates the growing polyketides
A. I, II
B. II only
C. I only
D. II, III
E. II only
A. I, II
Which of the following is matched incorrectly in regards to ubiquitination?
I. Ub activating enzyme conjugates to Ub C-terminus
II. Ub conjugating enzyme transfers to E2 with thiol transfer
III. Ub protein ligase transfers E2 with a thiol transfer
A. I only
B. III only
C. I, II
D. II only
E. II, III
B. III only
Which is not a reaction of the urea cycle?
I. Condensation and Activation of NH3
II. Transfer carbamoyl group
III. Condensation with bicarbonate
IV. Elimination with fumarate
V. Hydrolysis of ornithine to urea and arginine
100% CORRECT ANSWERS!!
Which of the following statements is wrong?
A. The sense strand has the same sequence as the mRNA
B. The antisense strand is complimentary to the mRNA
C. The antisense strand is transcribed
D. The antisense strand is the coding strand
D. The antisense strand is the coding strand
Which is not a step in the PCR protocol?
I. Heat to separate strands
II. Hybridize primers
III. Remove nucleotides to initiate DNA synthesis
IV. Rapidly cool to anneal the primers
A. I only
B. II, III only
C. IV only
D. III only
E. none of the above are wrong
D. III only
Which contributes to the phase transition in the bilayer?
I. Transition temperature decreases with chain length, saturation
II. Transition temperature increases with cholesterol
III. Transition temperature increases with chain length, saturation.
A. I, II
B. II only
C. I only
D. III only
E. II,III
,D. III only
Which of the following is true of the Kv channels?
I. Triggered by a positively charged helix
II. T1 domain precedes the transmembrane domain
III. As membrane potential is decreased, the S4 helix is pulled to the extracellular side
IV. The inactivation ball pulls the channel to the external side of the cell
A. I only
B. I,II
C. I, II, III
D. III, IV
E. I, II, III, IV
B. I,II
In the pentose phosphate pathway, to make 6-phosphoglucono-δ-lactone using glucose-6-
phosphate dehydrogenase from G6P, what occurs?
a. A direct hydride transfer to make NADPH
b. The reaction is specific for NADPH
c. NADP+ inhibits the reaction
d. An aldehyde is oxidized to a lactone
e. A and D are correct
e. A and D are correct
Which is the correct order for Odd number fatty acid oxidation?
I. Mutase rearranges CO2 to C3 and moves acetyl CoA from C1-C2 to C1-C3
II. Carboxylase reaction occurs
III. Racemase rearranges to R configuration
IV. Mutase rearranges CO2 to C3 and moves acetyl CoA from C1-C2 to C2-C3
A. I, III, II
B. II, III, I
C. II, III, IV
, D. III, I, II
E. None of the above
B. II, III, I
Which of these are correct factors that play a role in chain length control?
I. The interior cleft that accommodates growing polyketides.
II. Tailoring using enzymes.
III. The exterior cleft accommodates the growing polyketides
A. I, II
B. II only
C. I only
D. II, III
E. II only
A. I, II
Which of the following is matched incorrectly in regards to ubiquitination?
I. Ub activating enzyme conjugates to Ub C-terminus
II. Ub conjugating enzyme transfers to E2 with thiol transfer
III. Ub protein ligase transfers E2 with a thiol transfer
A. I only
B. III only
C. I, II
D. II only
E. II, III
B. III only
Which is not a reaction of the urea cycle?
I. Condensation and Activation of NH3
II. Transfer carbamoyl group
III. Condensation with bicarbonate
IV. Elimination with fumarate
V. Hydrolysis of ornithine to urea and arginine
