Question 1

During aerobic cellular respiration, the final electron acceptor is ________.

Accepted Answer

A)   pyruvic acid
B)   oxygen
C)   nitrate
D)   cytochrome c
E)   FADF) A) and B)
G) A) and E)

Question 2

FAD, NAD, and coenzyme A are all ________ carriers.

Accepted Answer

A)   hydrogen
B)   electron
C)   ATP
D)   hydrogen and electron
E)   None of the choices are correct.F) A) and E)
G) A) and D)

Question 3

The principal sites of amphibolic interaction occur during ________.

Accepted Answer

A)   glycolysis and photosynthesis
B)   the Krebs cycle and electron transport system
C)   glycolysis and the Krebs cycle
D)   fermentation and the Krebs cycle
E)   fermentation and glycolysisF) All of the above
G) A) and E)

Question 4

Microbes can utilize only carbohydrates for energy production.

Accepted Answer

A) True 
 B)False

Question 5

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule?

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   6F) B) and C)
G) C) and D)

Question 6

The RN is familiar with ATP production in bacterial and eukaryotic cells. How many ATP per glucose molecule would aerobic respiration yield in the patient's cells?

Accepted Answer

A)   2 ATP
B)   36 ATPs
C)   38 ATP
D)   ATP yield is unpredictable.E) A) and C)
F) All of the above

Question 7

Each FADH2 from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s) .

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) B) and D)
G) A) and E)

Question 8

NADH and FADH2 molecules are oxidized in which step of the aerobic respiration process?

Accepted Answer

A)   Electron transport system
B)   Krebs cycle
C)   Glycolysis
D)   Preparation for Krebs cycleE) A) and D)
F) A) and C)

Question 9

In addition to electrons, which of the following can also be transferred, exchanging energy in the process?

Accepted Answer

A)   ADP
B)   Glucose
C)   Carbon
D)   Hydrogen
E)   Carbon dioxideF) B) and C)
G) C) and D) D

Question 10

The cell's metabolic reactions involve the participation of ________ that lower the activation energy needed for the initiation of a reaction.

Accepted Answer

A)   cofactors
B)   vitamins
C)   enzymes
D)   ATP
E)   coenzymesF) All of the above
G) A) and E)

Question 11

Fatty acids can be converted to acetyl-CoA for entering the Krebs cycle by the process of ________.

Accepted Answer

A)   amination
B)   deamination
C)   phosphorylation
D)   beta oxidation
E)   gluconeogenesisF) A) and B)
G) A) and C)

Question 12

Oxygen-containing ions are used by some bacteria as final electron acceptors.

Accepted Answer

A) True 
 B)False

Question 13

Intermediates in the glycolysis pathway feed into additional pathways that make amino acids and complex carbohydrates. These latter pathways are ________.

Accepted Answer

A)   biosynthetic and endergonic
B)   hydrolytic and exergonic
C)   biosynthetic and exergonic
D)   hydrolytic and endergonicE) B) and D)
F) A) and B)

Question 14

Which of the following statements properly characterizes the ATP yield from anaerobic respiration?

Accepted Answer

A)   Anaerobic respiration produces less ATP per glucose molecule than aerobic respiration at maximum net yield.
B)   Anaerobic respiration at maximum net yield produces more ATP per glucose molecule than fermentation.
C)   Anaerobic respiration produces 2-36 ATPs per glucose molecule.
D)   All of the choices are correct.E) All of the above
F) C) and D) D

Question 15

ATP is composed of deoxyribose, adenine, and three phosphate groups.

Accepted Answer

A) True 
 B)False  False

Question 16

All aerobic bacterial species have identical electron acceptors in their electron transport systems.

Accepted Answer

A) True 
 B)False

Question 17

Metabolic pathways that regenerate their starting point are called ________ pathways.

Accepted Answer

A)   linear
B)   bidirectional
C)   convergent
D)   cyclic
E)   divergentF) B) and E)
G) B) and C)

Question 18

A holoenzyme is a combination of a protein and one or more substances called ________.

Accepted Answer

A)   substrates
B)   apoenzymes
C)   catalysts
D)   cofactors
E)   reactantsF) A) and B)
G) A) and E)

Question 19

Anabolic pathways are associated with a net gain of ATP, whereas catabolic pathways, for example, glycolysis, are associated with a net ATP breakdown.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is not involved in the step that occurs between glycolysis and the Krebs cycle?

Accepted Answer

A)   NADH is formed
B)   CO2 is released
C)   Coenzyme A attaches to an acetyl group
D)   Pyruvic acid accepts electrons from NADHE) C) and D)
F) A) and B)

Exam 7: Microbial Metabolism

During aerobic cellular respiration, the final electron acceptor is ________.

Correct AnswerverifiedShow Answer

FAD, NAD, and coenzyme A are all ________ carriers.

Correct AnswerverifiedShow Answer

The principal sites of amphibolic interaction occur during ________.

Correct AnswerverifiedShow Answer

Microbes can utilize only carbohydrates for energy production.

Correct AnswerverifiedShow Answer

How many carbon dioxide molecules are produced by the complete aerobic breakdown of one glucose molecule?

Correct AnswerverifiedShow Answer

The RN is familiar with ATP production in bacterial and eukaryotic cells. How many ATP per glucose molecule would aerobic respiration yield in the patient's cells?

Correct AnswerverifiedShow Answer

Each FADH2 from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s) .

Correct AnswerverifiedShow Answer

NADH and FADH2 molecules are oxidized in which step of the aerobic respiration process?

Correct AnswerverifiedShow Answer

In addition to electrons, which of the following can also be transferred, exchanging energy in the process?

Correct AnswerverifiedD

The cell's metabolic reactions involve the participation of ________ that lower the activation energy needed for the initiation of a reaction.

Correct AnswerverifiedShow Answer

Fatty acids can be converted to acetyl-CoA for entering the Krebs cycle by the process of ________.

Correct AnswerverifiedShow Answer

Oxygen-containing ions are used by some bacteria as final electron acceptors.

Correct AnswerverifiedShow Answer

Intermediates in the glycolysis pathway feed into additional pathways that make amino acids and complex carbohydrates. These latter pathways are ________.

Correct AnswerverifiedShow Answer

Which of the following statements properly characterizes the ATP yield from anaerobic respiration?

Correct AnswerverifiedD

ATP is composed of deoxyribose, adenine, and three phosphate groups.

Correct AnswerverifiedFalse

All aerobic bacterial species have identical electron acceptors in their electron transport systems.

Correct AnswerverifiedShow Answer

Metabolic pathways that regenerate their starting point are called ________ pathways.

Correct AnswerverifiedShow Answer

A holoenzyme is a combination of a protein and one or more substances called ________.

Correct AnswerverifiedShow Answer

Anabolic pathways are associated with a net gain of ATP, whereas catabolic pathways, for example, glycolysis, are associated with a net ATP breakdown.

Correct AnswerverifiedShow Answer

Which of the following is not involved in the step that occurs between glycolysis and the Krebs cycle?

Correct AnswerverifiedShow Answer

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Each FADH₂ from the Krebs cycle enters the electron transport system and gives rise to a maximum of ________ ATP(s) .

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NADH and FADH₂ molecules are oxidized in which step of the aerobic respiration process?

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D

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D

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False

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