Question 1

Figure 5.3  How would a noncompetitive inhibitor interfere with a reaction involving the enzyme shown in Figure 5.3?

Accepted Answer

A)   It would bind to a.
B)   It would bind to b.
C)   It would bind to c.
D)   It would bind to d.
E)   The answer cannot be determined based on the information provided.F) A) and B)
G) C) and E)

Question 2

Glycolysis is utilized by cells in both respiration and fermentation.

Accepted Answer

A) True 
 B)False

Question 3

Which biochemical process is NOT used during glycolysis?

Accepted Answer

A)   substrate-level phosphorylation
B)   beta oxidation
C)   oxidation-reduction
D)   carbohydrate catabolism
E)   enzymatic reactionsF) C) and D)
G) A) and E) B

Question 4

The advantage of the pentose phosphate pathway is that it produces all of the following EXCEPT

Accepted Answer

A)   precursors for nucleic acids.
B)   precursors for the synthesis of amino acids.
C)   three ATPs.
D)   NADPH.
E)   precursors for the synthesis of glucose.F) None of the above
G) B) and C)

Question 5

Figure 5.8
 
-Refer to Figure 5.8. In aerobic respiration, where is water formed?

Accepted Answer

A)   a
B)   b
C)   c
D)   d
E)   eF) A) and D)
G) A) and E)

Question 6

Which of the following statements are TRUE? 1- Electron carriers are located at ribosomes.
2- ATP is a common intermediate between catabolic and anabolic pathways.
3- ATP is used for the long-term storage of energy and so is often found in storage granules. 4-Anaerobic organisms are capable of generating ATP via respiration.
5-ATP can be generated by the flow of protons across protein channels.

Accepted Answer

A)   1, 2, 3
B)   1, 3, 4
C)   2, 4, 5
D)   2, 3, 5
E)   All of the statements are true.F) B) and D)
G) B) and C)

Question 7

Once an enzyme has converted substrates into products, the active site reverts back to its original form.

Accepted Answer

A) True 
 B)False  True

Question 8

Which of the following uses CO₂ for carbon and H2 for energy?

Accepted Answer

A)   chemoautotroph
B)   chemoheterotroph
C)   photoautotroph
D)   photoheterotrophE) None of the above
F) A) and B)

Question 9

Which of the following statements regarding the glycolysis pathway is FALSE?

Accepted Answer

A)   Two pyruvate molecules are generated.
B)   One molecule of ATP is expended.
C)   Two molecules of water are generated.
D)   Four ATP molecules are generated via substrate-level phosphorylation.
E)   Two NADH molecules are generated.F) A) and B)
G) C) and D) B

Question 10

The pentose phosphate pathway can be characterized as an anabolic pathway.

Accepted Answer

A) True 
 B)False

Question 11

Figure 5.1  Which compound is being reduced in the reaction shown in Figure 5.1?

Accepted Answer

A)   α-ketoglutaric acid and NAD+
B)   NADH and isocitric acid
C)   NADH
D)   isocitric acid and α-ketoglutaric acid
E)   NAD+F) C) and E)
G) C) and D)

Question 12

Cyanobacteria are a type of

Accepted Answer

A)   chemoautotroph.
B)   chemoheterotroph.
C)   photoautotroph.
D)   photoheterotroph.E) A) and B)
F) A) and C)

Question 13

Which statements correspond to amphibolic pathways? 1. anabolic and catabolic reactions are joined through common intermediate
2)  shared metabolic pathways
3)  Feedback inhibition can help regulate rates of reactions
4)  both types of reactions are necessary but do not occur simultaneously

Accepted Answer

A)   2, 3, 4
B)   1, 2, 3, 4
C)   1, 2, 3
D)   1 only
E)   2, 4F) A) and E)
G) B) and D)

Question 14

Figure 5.8
 
-In Figure 5.8, the structure labeled ʺ1ʺ is

Accepted Answer

A)   NAD+.
B)   ATP synthase.
C)   cytoplasm.
D)   a cell wall.
E)   a plasma membrane.F) C) and E)
G) D) and E)

Question 15

In general, ATP is generated in catabolic pathways and expended in anabolic pathways.

Accepted Answer

A) True 
 B)False

Question 16

A urease test is used to identify Mycobacterium tuberculosis because

Accepted Answer

A)   M. tuberculosis produces urease.
B)   some bacteria reduce nitrate ion.
C)   urea accumulates during tuberculosis.
D)   M. bovis can cause tuberculosis.
E)   urease is a sign of tuberculosis.F) A) and C)
G) D) and E)

Question 17

Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to

Accepted Answer

A)   decrease.
B)   increase.
C)   stay the same.D) All of the above
E) A) and B)

Question 18

Gallionella bacteria can get energy from the reaction Fe₂+ → Fe3+. This reaction is an example of

Accepted Answer

A)   the Calvin-Benson cycle.
B)   reduction.
C)   fermentation.
D)   photophosphorylation.
E)   oxidation.F) B) and E)
G) A) and E)

Question 19

In noncyclic photophosphorylation, O₂ is released from

Accepted Answer

A)   H₂O.
B)   sunlight.
C)   C6H12O6.
D)   chlorophyll.
E)   CO₂.F) A) and D)
G) A) and E)

Question 20

Carbon fixation occurs during the light-independent phase of photosynthesis.

Accepted Answer

A) True 
 B)False

Exam 5: Microbial Metabolism

Figure 5.3 How would a noncompetitive inhibitor interfere with a reaction involving the enzyme shown in Figure 5.3?

Correct Answer
verified

Glycolysis is utilized by cells in both respiration and fermentation.

Correct Answer
verified

Which biochemical process is NOT used during glycolysis?

Correct Answer
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B

The advantage of the pentose phosphate pathway is that it produces all of the following EXCEPT

Correct Answer
verified

Figure 5.8 -Refer to Figure 5.8. In aerobic respiration, where is water formed?

Correct Answer
verified

Correct Answer
verified

Once an enzyme has converted substrates into products, the active site reverts back to its original form.

Correct Answer
verified
True

Which of the following uses CO₂ for carbon and H2 for energy?

Correct Answer
verified

Which of the following statements regarding the glycolysis pathway is FALSE?

Correct Answer
verified
B

The pentose phosphate pathway can be characterized as an anabolic pathway.

Correct Answer
verified

Figure 5.1 Which compound is being reduced in the reaction shown in Figure 5.1?

Correct Answer
verified

Cyanobacteria are a type of

Correct Answer
verified

Which statements correspond to amphibolic pathways? 1. anabolic and catabolic reactions are joined through common intermediate 2) shared metabolic pathways 3) Feedback inhibition can help regulate rates of reactions 4) both types of reactions are necessary but do not occur simultaneously

Correct Answer
verified

Figure 5.8 -In Figure 5.8, the structure labeled ʺ1ʺ is

Correct Answer
verified

In general, ATP is generated in catabolic pathways and expended in anabolic pathways.

Correct Answer
verified

A urease test is used to identify Mycobacterium tuberculosis because

Correct Answer
verified

Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to

Correct Answer
verified

Gallionella bacteria can get energy from the reaction Fe₂+ → Fe3+. This reaction is an example of

Correct Answer
verified

In noncyclic photophosphorylation, O₂ is released from

Correct Answer
verified

Carbon fixation occurs during the light-independent phase of photosynthesis.

Correct Answer
verified

Exam 5: Microbial Metabolism

Figure 5.3 How would a noncompetitive inhibitor interfere with a reaction involving the enzyme shown in Figure 5.3?

Correct AnswerverifiedShow Answer

Glycolysis is utilized by cells in both respiration and fermentation.

Correct AnswerverifiedShow Answer

Which biochemical process is NOT used during glycolysis?

Correct AnswerverifiedB

The advantage of the pentose phosphate pathway is that it produces all of the following EXCEPT

Correct AnswerverifiedShow Answer

Figure 5.8 -Refer to Figure 5.8. In aerobic respiration, where is water formed?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Once an enzyme has converted substrates into products, the active site reverts back to its original form.

Correct AnswerverifiedTrue

Which of the following uses CO₂ for carbon and H2 for energy?

Correct AnswerverifiedShow Answer

Which of the following statements regarding the glycolysis pathway is FALSE?

Correct AnswerverifiedB

The pentose phosphate pathway can be characterized as an anabolic pathway.

Correct AnswerverifiedShow Answer

Figure 5.1 Which compound is being reduced in the reaction shown in Figure 5.1?

Correct AnswerverifiedShow Answer

Cyanobacteria are a type of

Correct AnswerverifiedShow Answer

Which statements correspond to amphibolic pathways? 1. anabolic and catabolic reactions are joined through common intermediate 2) shared metabolic pathways 3) Feedback inhibition can help regulate rates of reactions 4) both types of reactions are necessary but do not occur simultaneously

Correct AnswerverifiedShow Answer

Figure 5.8 -In Figure 5.8, the structure labeled ʺ1ʺ is

Correct AnswerverifiedShow Answer

In general, ATP is generated in catabolic pathways and expended in anabolic pathways.

Correct AnswerverifiedShow Answer

A urease test is used to identify Mycobacterium tuberculosis because

Correct AnswerverifiedShow Answer

Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to

Correct AnswerverifiedShow Answer

Gallionella bacteria can get energy from the reaction Fe₂+ → Fe3+. This reaction is an example of

Correct AnswerverifiedShow Answer

In noncyclic photophosphorylation, O₂ is released from

Correct AnswerverifiedShow Answer

Carbon fixation occurs during the light-independent phase of photosynthesis.

Correct AnswerverifiedShow Answer

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B

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True

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B

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