Question 1

Some desert beetles can live out their life without ever drinking liquid water.They survive on "metabolic water," which

Accepted Answer

A)  was produced as water in the organisms they eat and is retained,never to pass out of the cell membrane.
B)  is absorbed from the air along with respiratory oxygen.
C)  is formed as a result of the reduction of oxygen as the final electron acceptor from the electron transport chain.
D)  is a breakdown product from glycolysis in the cytoplasm.
E)  is an original storehouse of water that is never allowed to pass out the cell membrane.F) B) and D)
G) A) and C)

Question 2

The first phase of aerobic cellular respiration is:

Accepted Answer

A)  the citric acid cycle.
B)  glycolysis.
C)  the electron transport system.
D)  fermentation.
E)  the preparatory reaction.F) B) and C)
G) A) and E) B

Question 3

The first reaction in the citric acid cycle is binding

Accepted Answer

A)  carbon dioxide to a four-carbon (C4) molecule.
B)  carbon dioxide to a five-carbon (C5) molecule.
C)  acetyl-CoA to a C5 molecule.
D)  acetyl-CoA to a C4 molecule.E) A) and B)
F) A) and C)

Question 4

The electron transport chain and chemiosmosis produces ______ ATP from each NADH and/or _________ ATP from each FADH2 entering the system.

Accepted Answer

A)  4; 2
B)  3; 2
C)  2; 4
D)  2; 3E) B) and C)
F) All of the above

Question 5

Some bacteria are strict aerobes and others are strict anaerobes.Some bacteria,however,are facultative anaerobes and can live with or without oxygen.If given the choice of using oxygen or not,which pathway should a facultative anaerobe perform?

Accepted Answer

A)  Use oxygen since aerobic metabolism provides more ATP per molecule of carbohydrate broken down than anaerobic metabolism.
B)  Not use oxygen since it is a facultative anaerobe,it doesn't tolerate oxygen well.
C)  Use oxygen because aerobic metabolism is easier.
D)  It doesn't matter; both processes will produce the same results.E) A) and B)
F) A) and C)

Question 6

Identify 'b' as the _____

Accepted Answer

A)  inner membrane
B)  matrix
C)  cristae
D)  intermembrane space
E)  outer membraneF) None of the above
G) A) and C)

Question 7

Complete oxidative breakdown of glucose results in ______ ATP molecules.

Accepted Answer

A)  2
B)  4
C)  32
D)  36
E)  39F) A) and B)
G) B) and C)

Question 8

Which process produces both NADH and FADH2?

Accepted Answer

A)  the citric acid cycle
B)  glycolysis
C)  the electron transport system
D)  fermentation
E)  the preparatory reactionF) A) and B)
G) A) and C)

Question 9

For fatty acids to enter the citric acid cycle of aerobic respiration,the fatty acids must be:

Accepted Answer

A)  deaminated.
B)  combined with glycerol.
C)  combined with ATP.
D)  converted to acetyl groups.
E)  converted into five-carbon sugars.F) A) and E)
G) C) and D)

Question 10

Adult humans cannot synthesize _____ out of the _____ common amino acids.

Accepted Answer

A)  eleven; twenty
B)  nine; eleven
C)  nine; twenty
D)  any; twenty
E)  half; allF) B) and D)
G) A) and E)

Question 11

The amino acids we cannot synthesize are called _____ because we _____.

Accepted Answer

A)  unnecessary; therefore do not need them
B)  limiting; must include them in our diet
C)  anabolic; must use alternative amino acids
D)  essential; must include them in our diet
E)  superfluous; must survive without themF) B) and D)
G) A) and D)

Question 12

Fermentation is the process that produces bubbles of carbon dioxide that makes bread dough rise.

Accepted Answer

A) True 
 B)False  True

Question 13

The final electron acceptor in glycolysis is oxygen and this step will occur within the matrix of the mitochondria.

Accepted Answer

A) True 
 B)False

Question 14

Which process produces alcohol or lactate?

Accepted Answer

A)  the citric acid cycle
B)  glycolysis
C)  the electron transport system
D)  fermentation
E)  the preparatory reactionF) B) and D)
G) B) and C)

Question 15

What is the correct summary for the energy investment vs.energy harvesting steps of glycolysis?

Accepted Answer

A)  2 ATP are invested and 4 ATP are harvested to produce a net gain of 2 ATP
B)  4 ATP are invested and 6 ATP are harvested to produce a net gain of 2 ATP
C)  no ATP are invested and 2 ATP are harvested to produce a net gain of 2 ATP
D)  2 ATP are invested and no ATP are harvested to produce a net loss of 2 ATPE) None of the above
F) All of the above

Question 16

Glycolysis occurs before the preparatory reaction and the citric acid cycle.

Accepted Answer

A) True 
 B)False

Question 17

The breakdown of glucose in cellular respiration is a catabolic reaction.

Accepted Answer

A) True 
 B)False  True

Question 18

Which process reduces molecular oxygen to water?

Accepted Answer

A)  the citric acid cycle
B)  glycolysis
C)  the electron transport system
D)  fermentation
E)  the preparatory reactionF) A) and E)
G) None of the above

Question 19

Fermentation follows glycolysis in some cells when oxygen is not available.

Accepted Answer

A) True 
 B)False

Question 20

The correct sequence for aerobic metabolic breakdown of glucose is

Accepted Answer

A)  glycolysis-preparatory reaction--cirtric acid cycle--electron transport system
B)  preparatory reaction--glycolysis---electron transport--citric acid cycle
C)  electron transport system--citric acid cycle---preparatory reaction--glycolysis
D)  None of the choices are correct.E) A) and D)
F) A) and C)

Exam 8: Cellular Respiration

Some desert beetles can live out their life without ever drinking liquid water.They survive on "metabolic water," which

Correct AnswerverifiedShow Answer

The first phase of aerobic cellular respiration is:

Correct AnswerverifiedB

The first reaction in the citric acid cycle is binding

Correct AnswerverifiedShow Answer

The electron transport chain and chemiosmosis produces ______ ATP from each NADH and/or _________ ATP from each FADH2 entering the system.

Correct AnswerverifiedShow Answer

Some bacteria are strict aerobes and others are strict anaerobes.Some bacteria,however,are facultative anaerobes and can live with or without oxygen.If given the choice of using oxygen or not,which pathway should a facultative anaerobe perform?

Correct AnswerverifiedShow Answer

Identify 'b' as the _____

Correct AnswerverifiedShow Answer

Complete oxidative breakdown of glucose results in ______ ATP molecules.

Correct AnswerverifiedShow Answer

Which process produces both NADH and FADH2?

Correct AnswerverifiedShow Answer

For fatty acids to enter the citric acid cycle of aerobic respiration,the fatty acids must be:

Correct AnswerverifiedShow Answer

Adult humans cannot synthesize _____ out of the _____ common amino acids.

Correct AnswerverifiedShow Answer

The amino acids we cannot synthesize are called _____ because we _____.

Correct AnswerverifiedShow Answer

Fermentation is the process that produces bubbles of carbon dioxide that makes bread dough rise.

Correct AnswerverifiedTrue

The final electron acceptor in glycolysis is oxygen and this step will occur within the matrix of the mitochondria.

Correct AnswerverifiedShow Answer

Which process produces alcohol or lactate?

Correct AnswerverifiedShow Answer

What is the correct summary for the energy investment vs.energy harvesting steps of glycolysis?

Correct AnswerverifiedShow Answer

Glycolysis occurs before the preparatory reaction and the citric acid cycle.

Correct AnswerverifiedShow Answer

The breakdown of glucose in cellular respiration is a catabolic reaction.

Correct AnswerverifiedTrue

Which process reduces molecular oxygen to water?

Correct AnswerverifiedShow Answer

Fermentation follows glycolysis in some cells when oxygen is not available.

Correct AnswerverifiedShow Answer

The correct sequence for aerobic metabolic breakdown of glucose is

Correct AnswerverifiedShow Answer

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B

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The electron transport chain and chemiosmosis produces ATP from each NADH and/or ___ ATP from each FADH₂ entering the system.

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Which process produces both NADH and FADH₂?

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Adult humans cannot synthesize _ out of the _ common amino acids.

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The amino acids we cannot synthesize are called _ because we _.

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True

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True

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