Question 1

Glyceraldehyde-3-phosphate is an intermediary of glycolysis that can also be utilized in biosynthetic pathways.

Accepted Answer

A) True 
 B)False

Question 2

Exergonic reactions:

Accepted Answer

A)  include synthesis of large carbohydrates.
B)  only occur in heterotrophs.
C)  occur during aerobic cellular respiration.
D)  do not occur in anaerobic cellular respiration.
E)  occur when ADP binds to inorganic phosphate to form ATP.F) A) and B)
G) A) and D)

Question 3

The redox carriers of the electron transport chain that have a tightly bound metal atom responsible for accepting and donating electrons are the _____.

Accepted Answer

The answer of The redox carriers of the electron transport...

Question 4

The reactions of fermentation function to produce _____ molecules for use in glycolysis.

Accepted Answer

A)  pyruvic acid
B)  ATP
C)  NAD
D)  NADH
E)  glucoseF) A) and D)
G) None of the above

Question 5

Each NADH that enters the electron transport system gives rise to _____ ATP.

Accepted Answer

A)  2
B)  3
C)  24
D)  36
E)  38F) B) and E)
G) C) and D)

Question 6

_____ testing can differentiate between bacterial species fermentation that produce mixed acids or 2, 3 butanediol.

Accepted Answer

The answer of _____ testing can differentiate between bacterial species...

Question 7

During aerobic cellular respiration, the final electron acceptor is:

Accepted Answer

A)  pyruvic acid.
B)  oxygen.
C)  nitrate.
D)  cytochrome c.
E)  FAD.F) All of the above
G) A) and E)

Question 8

Enzymes that can function at boiling water temperatures or other harsh conditions would be termed:

Accepted Answer

A)  denatured.
B)  ribozymes.
C)  abzymes.
D)  exoenzymes.
E)  extremozymes.F) B) and D)
G) A) and C) E

Question 9

All of the following are exoenzymes, except:

Accepted Answer

A)  ATP synthase.
B)  streptokinase.
C)  penicillinase.
D)  collagenase.
E)  elastase.F) A) and D)
G) C) and E)

Question 10

_____ enzymes have an active site, and an additional regulatory site for non-substrate attachment.

Accepted Answer

allosteric

Question 11

Anaerobic cellular respiration:

Accepted Answer

A)  is also called fermentation.
B)  only involves glycolysis.
C)  does not generate ATP.
D)  utilizes an electron transport system.
E)  uses the same final electron acceptors as aerobic respiration.F) C) and D)
G) A) and B)

Question 12

When enzyme action stops due to a buildup of end product this control is called:

Accepted Answer

A)  negative feedback.
B)  competitive inhibition.
C)  enzyme induction.
D)  enzyme repression.
E)  None of the choices are correct.F) B) and C)
G) B) and D)

Question 13

In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, how many ATP are generated?

Accepted Answer

A)  2 ATP
B)  3 ATP
C)  24 ATP
D)  36 ATP
E)  38 ATPF) A) and B)
G) A) and C)

Question 14

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Accepted Answer

A) True 
 B)False

Question 15

Enzymes that catalyze removing electrons from one substrate and adding electrons to another are called:

Accepted Answer

A)  phosphotransferases.
B)  oxidoreductases.
C)  decarboxylases.
D)  aminotransferases.
E)  ligases.F) All of the above
G) A) and B)

Question 16

The process of alcoholic fermentation produces:

Accepted Answer

A)  alcohol only.
B)  alcohol and oxygen.
C)  alcohol and carbon dioxide.
D)  carbon dioxide and yeast.
E)  yeast and oxygen.F) None of the above
G) A) and D)

Question 17

Each FADH2 that enters the electron transport system gives rise to _____ ATP.

Accepted Answer

A)  2
B)  3
C)  24
D)  36
E)  38F) C) and D)
G) A) and B)

Question 18

When glucose is broken down by glycolysis during bacterial fermentation, how many ATP are generated?

Accepted Answer

A)  2 ATP
B)  3 ATP
C)  24 ATP
D)  36 ATP
E)  38 ATPF) A) and C)
G) B) and E)

Question 19

Enzymes are:

Accepted Answer

A)  broken down in reactions that require energy input.
B)  proteins that function as catalysts.
C)  electron carrier molecules.
D)  not needed for catabolic reactions.
E)  All of the choices are correct.F) A) and B)
G) A) and C)

Question 20

ATP is composed of deoxyribose, adenine, and 3-phosphate groups.

Accepted Answer

A) True 
 B)False  False

Exam 8: An Introduction to Microbial Metabolism: the Chemical Crossroads of Life

Glyceraldehyde-3-phosphate is an intermediary of glycolysis that can also be utilized in biosynthetic pathways.

Correct AnswerverifiedShow Answer

Exergonic reactions:

Correct AnswerverifiedShow Answer

The redox carriers of the electron transport chain that have a tightly bound metal atom responsible for accepting and donating electrons are the _____.

Correct AnswerverifiedShow Answer

The reactions of fermentation function to produce _____ molecules for use in glycolysis.

Correct AnswerverifiedShow Answer

Each NADH that enters the electron transport system gives rise to _____ ATP.

Correct AnswerverifiedShow Answer

_____ testing can differentiate between bacterial species fermentation that produce mixed acids or 2, 3 butanediol.

Correct AnswerverifiedShow Answer

During aerobic cellular respiration, the final electron acceptor is:

Correct AnswerverifiedShow Answer

Enzymes that can function at boiling water temperatures or other harsh conditions would be termed:

Correct AnswerverifiedE

All of the following are exoenzymes, except:

Correct AnswerverifiedShow Answer

_____ enzymes have an active site, and an additional regulatory site for non-substrate attachment.

Correct Answerverifiedallosteric

Anaerobic cellular respiration:

Correct AnswerverifiedShow Answer

When enzyme action stops due to a buildup of end product this control is called:

Correct AnswerverifiedShow Answer

In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, how many ATP are generated?

Correct AnswerverifiedShow Answer

ATP synthase is a complex enzyme needed for oxidative phosphorylation.

Correct AnswerverifiedShow Answer

Enzymes that catalyze removing electrons from one substrate and adding electrons to another are called:

Correct AnswerverifiedShow Answer

The process of alcoholic fermentation produces:

Correct AnswerverifiedShow Answer

Each FADH2 that enters the electron transport system gives rise to _____ ATP.

Correct AnswerverifiedShow Answer

When glucose is broken down by glycolysis during bacterial fermentation, how many ATP are generated?

Correct AnswerverifiedShow Answer

Enzymes are:

Correct AnswerverifiedShow Answer

ATP is composed of deoxyribose, adenine, and 3-phosphate groups.

Correct AnswerverifiedFalse

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E

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allosteric

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Each FADH₂ that enters the electron transport system gives rise to _____ ATP.

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False