Question 1

The complete oxidation of glucose produces ________ ATP molecules.

Accepted Answer

A) 2 
B) 8 
C) 12 
D) 24 
E) 32 
A) 2 
B) 8 
C) 12 
D) 24 
E) 32

Question 2

In this figure depicting the Stages of Metabolism taken from your text, identify the metabolic substance numbered.  
-Substance 8

Accepted Answer

The answer of In this figure depicting the Stages of...

Question 3

In this figure, depicting part 1 of the Citric Acid Cycle, taken from your text, identify the substances numbered.  
-Substance 15

Accepted Answer

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

Question 4

Cyanide ion and carbon monoxide inhibit

Accepted Answer

A) cytochrome c oxidase. 
B) ATP production. 
C) antibiotic activity. 
D) CoQ formation. 
E) CoA formation. 
A) cytochrome c oxidase. 
B) ATP production. 
C) antibiotic activity. 
D) CoQ formation. 
E) CoA formation.

Question 5

In this figure, depicting part 1 of the Citric Acid Cycle, taken from your text, identify the substances numbered.  
-Substance 16

Accepted Answer

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

Question 6

Step 5 of the citric acid cycle is the hydrolysis of succinyl CoA. In this reaction

Accepted Answer

A) the energy released is used to make GTP. 
B) the energy released is used to make ATP. 
C) carbon dioxide is released. 
D) α-ketoglutarate is released. 
E) the enzyme aconitase is needed. 
A) the energy released is used to make GTP. 
B) the energy released is used to make ATP. 
C) carbon dioxide is released. 
D) α-ketoglutarate is released. 
E) the enzyme aconitase is needed.

Question 7

In reaction 1 of the citric acid cycle, acetyl CoA reacts with oxaloacetate.

Accepted Answer

A) True 
 B)False

Question 8

One method of regulation of the citric acid cycle is

Accepted Answer

A) allosteric control. 
B) osmosis. 
C) temperature control. 
D) carbon dioxide production. 
E) water concentration. 
A) allosteric control. 
B) osmosis. 
C) temperature control. 
D) carbon dioxide production. 
E) water concentration.

Question 9

The citric acid cycle is used in the oxidation of

Accepted Answer

A) glucose only. 
B) glucose and fatty acids only. 
C) fatty acids only. 
D) glucose, fatty acids, and proteins. 
E) proteins only. 
A) glucose only. 
B) glucose and fatty acids only. 
C) fatty acids only. 
D) glucose, fatty acids, and proteins. 
E) proteins only.

Question 10

What electron acceptor(s) is(are) used in the citric acid cycle?

Accepted Answer

A) FAD only 
B) NAD+ only 
C) NADH + FADH2 + HS - CoA 
D) FMN 
E) NAD+ + FAD 
A) FAD only 
B) NAD+ only 
C) NADH + FADH2 + HS - CoA 
D) FMN 
E) NAD+ + FAD

Question 11

The process which requires oxygen to produce carbon dioxide and water is called

Accepted Answer

A) fermentation. 
B) reduction. 
C) decomposition. 
D) oxidation. 
E) respiration. 
A) fermentation. 
B) reduction. 
C) decomposition. 
D) oxidation. 
E) respiration.

Question 12

In this figure depicting the Stages of Metabolism taken from your text, identify the metabolic substance numbered.  
-Substance 5

Accepted Answer

The answer of In this figure depicting the Stages of...

Question 13

The components of the electron transport chain do NOT include

Accepted Answer

A) oxygen (O2). 
B) Cyt c. 
C) Complex III. 
D) CoQ. 
E) acetyl CoA. 
A) oxygen (O2). 
B) Cyt c. 
C) Complex III. 
D) CoQ. 
E) acetyl CoA.

Question 14

Which of the following compounds in the citric acid cycle undergoes oxidative decarboxylation?

Accepted Answer

A) citrate 
B) isocitrate 
C) succinate 
D) fumarate 
E) succinyl CoA 
A) citrate 
B) isocitrate 
C) succinate 
D) fumarate 
E) succinyl CoA

Question 15

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

Question 16

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

Accepted Answer

A) zero 
B) two 
C) four 
D) six 
E) eight 
A) zero 
B) two 
C) four 
D) six 
E) eight

Question 17

The transformation of citrate to isocitrate in the citric acid cycle requires two ________ reactions.

Accepted Answer

A) oxidation 
B) reduction 
C) hydrolysis 
D) decarboxylation 
E) dehydration-hydration 
A) oxidation 
B) reduction 
C) hydrolysis 
D) decarboxylation 
E) dehydration-hydration

Question 18

In step 7 of the citric acid cycle, fumarate is converted to malate by a ________ reaction.

Accepted Answer

A) hydrolysis 
B) dehydrogenation 
C) hydrogenation 
D) hydration 
E) dehydration 
A) hydrolysis 
B) dehydrogenation 
C) hydrogenation 
D) hydration 
E) dehydration

Question 19

Which of the following is NOT a possible product of pyruvate under anaerobic conditions?

Accepted Answer

A) lactate 
B) acetaldehyde 
C) fumarate 
D) ethanol 
E) CO2 
A) lactate 
B) acetaldehyde 
C) fumarate 
D) ethanol 
E) CO2

Question 20

What is the correct coefficient for ATP in the complete combustion of glucose? 
C6H12O6 + 6O2 → 6CO2 + ________ ATP + 6H2O

Accepted Answer

A) 6 
B) 12 
C) 18 
D) 24 
E) 32 
A) 6 
B) 12 
C) 18 
D) 24 
E) 32

Exam 23: Metabolism and Energy Production

The complete oxidation of glucose produces ________ ATP molecules.

In this figure depicting the Stages of Metabolism taken from your text, identify the metabolic substance numbered. -Substance 8

In this figure, depicting part 1 of the Citric Acid Cycle, taken from your text, identify the substances numbered. -Substance 15

Cyanide ion and carbon monoxide inhibit

In this figure, depicting part 1 of the Citric Acid Cycle, taken from your text, identify the substances numbered. -Substance 16

Step 5 of the citric acid cycle is the hydrolysis of succinyl CoA. In this reaction

In reaction 1 of the citric acid cycle, acetyl CoA reacts with oxaloacetate.

One method of regulation of the citric acid cycle is

The citric acid cycle is used in the oxidation of

What electron acceptor(s) is(are) used in the citric acid cycle?

The process which requires oxygen to produce carbon dioxide and water is called

In this figure depicting the Stages of Metabolism taken from your text, identify the metabolic substance numbered. -Substance 5

The components of the electron transport chain do NOT include

Which of the following compounds in the citric acid cycle undergoes oxidative decarboxylation?

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

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

The transformation of citrate to isocitrate in the citric acid cycle requires two ________ reactions.

In step 7 of the citric acid cycle, fumarate is converted to malate by a ________ reaction.

Which of the following is NOT a possible product of pyruvate under anaerobic conditions?

What is the correct coefficient for ATP in the complete combustion of glucose? C6H12O6 + 6O2 → 6CO2 + ________ ATP + 6H2O

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What is the correct coefficient for ATP in the complete combustion of glucose? C₆H₁₂O₆ + 6O₂ → 6CO₂ + ________ ATP + 6H₂O