Question 1

The citric acid cycle step that removes the first CO₂ molecule is a(n)

Accepted Answer

A)   oxidative decarboxylation.
B)   reduction.
C)   carbonylation.
D)   hydrolysis.
E)   combination.F) A) and B)
G) A) and C)

Question 2

In electron transport, the oxidized product from the reaction of FMN + NADH + H+ is

Accepted Answer

A)   CoQ.
B)   FMNH₂.
C)   FADH.
D)   FAD.
E)   NAD+.F) A) and E)
G) A) and D)

Question 3

In the third major step of the citric acid cycle, NAD+ is converted to

Accepted Answer

A)   NAS-.
B)   NAD2+.
C)   NADH₂
D)   NAD.
E)   NADH.F) B) and D)
G) A) and C)

Question 4

The energy levels of complexes decrease as electron transport progresses.

Accepted Answer

A) True 
 B)False

Question 5

The GTP formed in step 5 of the citric acid cycle is used to make

Accepted Answer

A)   carbon dioxide.
B)   oxygen.
C)   water.
D)   CoA.
E)   ATP.F) A) and E)
G) A) and D)

Question 6

In stage three of metabolism, the overall result is to release

Accepted Answer

A)   glucose and water.
B)   lactate and acetyl CoA.
C)   lactate and glucose.
D)   glycogen and water.
E)   carbon dioxide and energy.F) B) and E)
G) D) and E)

Question 7

Under anaerobic conditions, there is a net production of __________ ATP during glycolysis.

Accepted Answer

A)   zero
B)   two
C)   four
D)   six
E)   eightF) C) and E)
G) A) and C)

Question 8

In this figure, depicting part 1 of the Citric Acid Cycle, taken from your text, identify the substances numbered. 
-substance 14

Accepted Answer

The answer of In this figure, depicting part 1 of...

Question 9

When combined with electron transport, one turn of the citric acid cycle produces __________ ATP.

Accepted Answer

A)   24
B)   12
C)   11
D)   14
E)   2F) A) and E)
G) C) and E)

Question 10

Most of the energy released in the citric acid cycle is used to produce

Accepted Answer

A)   glucose.
B)   acetyl CoA.
C)   NADH and FADH₂.
D)   carbon dioxide and water.
E)   citric acid.F) B) and D)
G) B) and C)

Question 11

During the first reaction in the citric acid cycle,

Accepted Answer

A)   free CoA is released.
B)   acetyl CoA is made.
C)   a decarboxylation occurs.
D)   a decomposition occurs.
E)   ATP is synthesized.F) All of the above
G) B) and E)

Question 12

In the chemiosmotic model of oxidative phosphorylation, ATP is synthesized as

Accepted Answer

A)   OH- flows through ATP synthase.
B)   electrons flow through ATP synthase.
C)   Ca2+ flows through ATP synthase.
D)   H+ flows through ATP synthase.
E)   Na+ flows through ATP synthase.F) C) and D)
G) A) and E)

Question 13

In this figure depicting the Stages of Metabolism taken from your text, identify the metabolic substance numbered. 
-process 9

Accepted Answer

citric acid cycle or...

Question 14

Which of the following is the net reaction for one turn of the citric acid cycle?

Accepted Answer

A)   Acetyl-S-CoA + 3 NAD+ + FAD + GDP + Pi + 2H₂O → 2 CO₂ + 3 NADH + 3 H+ + FADH₂ + HS-CoA + GTP
B)   Pyruvate + 3 NAD+ + FAD + GDP + Pi + 2H₂O → 3 CO₂ + 3 NADH + 3 H+ + FADH₂ + GTP
C)   Acetyl-S-CoA + NAD+ + FAD + GDP + Pi → 2 CO₂ + NADH + H+ + FADH₂ + HS-CoA + GTP
D)   Glucose + 2 NAD+ + 2GDP + 2 Pi + 2H₂O → 2Pyruvate + 2 NADH + 2 H+ + GTP
E)   Glucose + 2GDP + 2Pi → 2Lactate + 2GTPF) B) and D)
G) C) and D)

Question 15

The conversion of ATP to ADP and inorganic phosphate produces 7.3 kcal/mole of energy.

Accepted Answer

A) True 
 B)False

Question 16

The electron carrier __________ provides two ATP via electron transport.

Accepted Answer

A)   FADH₂
B)   NADH
C)   NADPH
D)   CoASH
E)   FNMH₂F) A) and C)
G) A) and E)

Question 17

Indicate the amount of ATP produced when each of the following reactions occurs.
-Acetyl CoA → 2CO₂

Accepted Answer

A)  6 ATP
B)  2 ATP
C)  36 ATP
D)  12 ATP
E)  3 ATPF) C) and E)
G) C) and D)

Question 18

Overall, one turn of the citric acid cycle produces

Accepted Answer

A)   three CO₂ molecules.
B)   three NADH molecules.
C)   two FADH₂ molecules.
D)   6 ATP.
E)   2 GTP.F) A) and E)
G) A) and C)

Question 19

Identify each of the following metabolic pathways.
-the series of reactions that converts acetyl CoA to carbon dioxide and water

Accepted Answer

A)  glycolysis
B)  electron transport
C)  citric acid cycleD) A) and B)
E) None of the above

Question 20

Which is the best choice for the box labeled "Answer" in the illustration below?

Accepted Answer

A)   oxidized carrier B
B)   carbon dioxide
C)   OH-
D)   reduced carrier BH₂
E)   energyF) A) and B)
G) D) and E)

Exam 23: Metabolism and Energy Production

In stage three of metabolism, the overall result is to release

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In the chemiosmotic model of oxidative phosphorylation, ATP is synthesized as

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When combined with electron transport, one turn of the citric acid cycle produces __________ ATP.

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The energy levels of complexes decrease as electron transport progresses.

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During the first reaction in the citric acid cycle,

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The conversion of ATP to ADP and inorganic phosphate produces 7.3 kcal/mole of energy.

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Overall, one turn of the citric acid cycle produces

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Indicate the amount of ATP produced when each of the following reactions occurs. -Acetyl CoA → 2CO₂

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In electron transport, the oxidized product from the reaction of FMN + NADH + H+ is

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The electron carrier __________ provides two ATP via electron transport.

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Under anaerobic conditions, there is a net production of __________ ATP during glycolysis.

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Most of the energy released in the citric acid cycle is used to produce

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The GTP formed in step 5 of the citric acid cycle is used to make

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Which is the best choice for the box labeled "Answer" in the illustration below?

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In this figure, depicting part 1 of the Citric Acid Cycle, taken from your text, identify the substances numbered. -substance 14

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In the third major step of the citric acid cycle, NAD+ is converted to

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Identify each of the following metabolic pathways. -the series of reactions that converts acetyl CoA to carbon dioxide and water

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Which of the following is the net reaction for one turn of the citric acid cycle?

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The citric acid cycle step that removes the first CO₂ molecule is a(n)

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In this figure depicting the Stages of Metabolism taken from your text, identify the metabolic substance numbered. -process 9

Correct Answerverifiedcitric acid cycle or...View AnswerShow Answer

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citric acid cycle or...
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