Question 1

Each of the following are electron carriers except

Accepted Answer

A)  NAD.
B)  FAD.
C)  NADP.
D)  FADP.
E)  Coenzyme A.F) B) and D)
G) A) and B)

Question 2

The principle sites of amphibolic interaction occur during

Accepted Answer

A)  glycolysis and photosynthesis.
B)  Krebs cycle and electron transport system.
C)  glycolysis and Krebs cycle.
D)  fermentation and Krebs cycle.
E)  fermentation and glycolysis.F) A) and B)
G) C) and E)

Question 3

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

Accepted Answer

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

Question 4

Each of the following are denaturing agents except

Accepted Answer

A)  high temperature.
B)  low temperature.
C)  high pH.
D)  low pH.
E)  All of the choices are correct.F) B) and D)
G) All of the above

Question 5

All of the following occur during the light-independent reactions EXCEPT

Accepted Answer

A)  carbon fixation.
B)  reduction of intermediates by NADPH.
C)  phosphorylation of ADP to form ATP.
D)  regeneration or RuBP.E) All of the above
F) C) and D)

Question 6

Each of the following are true of enzymes except

Accepted Answer

A)  they can be used over and over.
B)  they may or may not require cofactors.
C)  their active site is specific to the substrate.
D)  they increase the activation energy of a reaction.
E)  All of the choices are true of enzymes.F) A) and E)
G) C) and D)

Question 7

A type of cofactor would be

Accepted Answer

A)  vitamins.
B)  metallic ions.
C)  active sites.
D)  substrates.
E)  ribozymes.F) A) and E)
G) C) and E)

Question 8

During a fermentation experiment in lab, two different samples of grape juice have been inoculated with yeast.Air has been evacuated from sample I, but not from sample II.In which sample would you predict to the greater alcohol production?

Accepted Answer

A)  sample I
B)  sample II
C)  Similar alcohol production is expected in both samples.
D)  This cannot be predicted based on the information provided.E) B) and C)
F) B) and D)

Question 9

Enzymes that function inside a cell are

Accepted Answer

A)  apoenzymes.
B)  exoenzymes.
C)  constitutive enzymes.
D)  regulated enzymes.
E)  endoenzymes.F) A) and E)
G) A) and B)

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

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

Question 12

Many exoenzymes from pathogens are virulence factors.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is not true of the light-dependent reactions of photosynthesis?

Accepted Answer

A)  They occur in the thylakoid membranes.
B)  They generates NADPH.
C)  They generate glucose from CO2 and H2O.
D)  Photons cause magnesium to release electrons.
E)  ATP is generated by a chemiosmotic mechanism.F) C) and D)
G) A) and D)

Question 14

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) B) and D)
G) A) and C)

Question 15

ATP molecules are catalysts that lower the activation energy needed to initiate a reaction.

Accepted Answer

A) True 
 B)False

Question 16

In bacterial cells, the electron transport system is located in the

Accepted Answer

A)  cell membrane.
B)  mitochondria.
C)  chloroplasts.
D)  ribosomes.
E)  cytoplasm.F) A) and C)
G) A) and B)

Question 17

Photosynthesis occurs in chloroplasts of prokaryotes.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following represents the path of electrons during aerobic respiration?

Accepted Answer

A)  glucose - NADH - electron transport chain - oxygen
B)  glucose - pyruvate - citric acid - oxygen
C)  NADH - ATP - electron transport chain- oxygen
D)  glucose - NADH - citric acid - ATPE) B) and C)
F) All of the above

Question 19

The formation of citric acid from oxaloacetic acid and an acetyl group begins

Accepted Answer

A)  glycolysis.
B)  the electron transport system.
C)  the Krebs cycle.
D)  fermentation.
E)  oxidative phosphorylation.F) A) and B)
G) A) and E)

Question 20

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) C) and D)
G) All of the above

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

Each of the following are denaturing agents except

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ATP molecules are catalysts that lower the activation energy needed to initiate a reaction.

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

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

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

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Which of the following is not true of the light-dependent reactions of photosynthesis?

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A type of cofactor would be

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Each of the following are electron carriers except

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Enzymes that function inside a cell are

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The principle sites of amphibolic interaction occur during

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Photosynthesis occurs in chloroplasts of prokaryotes.

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During a fermentation experiment in lab, two different samples of grape juice have been inoculated with yeast.Air has been evacuated from sample I, but not from sample II.In which sample would you predict to the greater alcohol production?

Correct AnswerverifiedShow Answer

In bacterial cells, the electron transport system is located in the

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

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Many exoenzymes from pathogens are virulence factors.

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Each of the following are true of enzymes except

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All of the following occur during the light-independent reactions EXCEPT

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

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Which of the following represents the path of electrons during aerobic respiration?

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The formation of citric acid from oxaloacetic acid and an acetyl group begins

Correct AnswerverifiedShow Answer

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