Question 1

A(n) (oxidation/reduction/transport) reaction is one in which a molecule accepts an electron.

Accepted Answer

The answer of A(n) (oxidation/reduction/transport) reaction is one in which...

Question 2

Significant amounts of the NADPH required for the Calvin-Benson cycle are produced during the (cyclic/noncyclic) photophosphorylation reactions of photosynthesis.

Accepted Answer

The answer of Significant amounts of the NADPH required for...

Question 3

Reactions that are both catabolic and anabolic are amphibolic.

Accepted Answer

A) True 
 B)False

Question 4

Accumulation of a metabolic pathway product may result in decreased activity of the pathway enzymes.

Accepted Answer

A) True 
 B)False

Question 5

Anaerobic bacteria may use ________ as the final electron acceptor during anaerobic respiration.

Accepted Answer

A)  nitrate only 
B)  carbon dioxide only 
C)  sulfate only 
D)  both nitrate and sulfate 
E)  carbon dioxide, nitrate and sulfate 
A)  nitrate only 
B)  carbon dioxide only 
C)  sulfate only 
D)  both nitrate and sulfate 
E)  carbon dioxide, nitrate and sulfate

Question 6

Enzymes known as lyases participate in ________ reactions.

Accepted Answer

A)  anabolic 
B)  catabolic 
C)  both anabolic and catabolic 
D)  neither anabolic nor catabolic 
E)  oxidation-reduction 
A)  anabolic 
B)  catabolic 
C)  both anabolic and catabolic 
D)  neither anabolic nor catabolic 
E)  oxidation-reduction

Question 7

Anaerobic respiration involves the use of molecules other than oxygen as the final electron (acceptor/donor) in an electron transport chain.

Accepted Answer

The answer of Anaerobic respiration involves the use of molecules...

Question 8

Beta-oxidation of fatty acids produces (acetic acid/acetyl-CoA/glycerol).

Accepted Answer

The answer of Beta-oxidation of fatty acids produces (acetic acid/acetyl-CoA/glycerol)....

Question 9

Many vitamins are important ________ of enzymes.

Accepted Answer

A)  protein cofactors 
B)  coenzymes 
C)  allosteric inhibitors 
D)  competitive inhibitors 
E)  activators 
A)  protein cofactors 
B)  coenzymes 
C)  allosteric inhibitors 
D)  competitive inhibitors 
E)  activators

Question 10

Identify the processes of glucose metabolism represented in Figure 5.1. 
A) A = electron transport chain, B = Krebs cycle, C = glycolysis, D = fermentation
B) A = glycolysis, B = fermentation, C = Krebs cycle, D = electron transport chain
C) A = fermentation, B = glycolysis, C = Krebs cycle, D = electron transport chain
D) A = glycolysis, B = Krebs cycle, C = fermentation, D = electron transport chain
E) A = glycolysis, B = Krebs cycle, C = electron transport chain, D = fermentation

Accepted Answer

The answer of   
Identify the processes of glucose...

Question 11

Explain why the ATP yield from processes such as cellular respiration is generally given as a theoretical number.

Accepted Answer

The maximum yield of ATP from a single m

Question 12

Which of the following is/are common to chemiosmosis and the light-dependent reactions of photosynthesis?

Accepted Answer

A)  reduction of NADP⁺ only 
B)  electron transport only 
C)  a proton gradient only 
D)  both electron transport and a proton gradient 
E)  electron transport, a proton gradient, and reduction of NADP⁺ 
A)  reduction of NADP⁺ only 
B)  electron transport only 
C)  a proton gradient only 
D)  both electron transport and a proton gradient 
E)  electron transport, a proton gradient, and reduction of NADP⁺

Question 13

All the precursors of amino acids are intermediates of glycolytic and fermentation pathways.

Accepted Answer

A) True 
 B)False

Question 14

The pentose phosphate pathway generates all the necessary precursors for nucleotide biosynthesis.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following statements concerning cellular metabolism is FALSE?

Accepted Answer

A)  Energy obtained from nutrients or light is stored in the bonds of ATP. 
B)  Enzymes are used in both catabolic and anabolic reactions. 
C)  Macromolecules are converted into cell structures via catabolism. 
D)  The goal of metabolism is reproduction of the organism. 
E)  ATP is used in the formation of macromolecules. 
A)  Energy obtained from nutrients or light is stored in the bonds of ATP. 
B)  Enzymes are used in both catabolic and anabolic reactions. 
C)  Macromolecules are converted into cell structures via catabolism. 
D)  The goal of metabolism is reproduction of the organism. 
E)  ATP is used in the formation of macromolecules.

Question 16

Pyruvic acid is a product of

Accepted Answer

A)  the Krebs cycle. 
B)  fermentation. 
C)  glycolysis. 
D)  the pentose phosphate pathway. 
E)  both fermentation and the Krebs cycle. 
A)  the Krebs cycle. 
B)  fermentation. 
C)  glycolysis. 
D)  the pentose phosphate pathway. 
E)  both fermentation and the Krebs cycle.

Question 17

Only Photosystem I is required for (anoxygenic/cyclic/noncyclic) photophosphorylation to occur.

Accepted Answer

The answer of Only Photosystem I is required for (anoxygenic/cyclic/noncyclic)...

Exam 5: Microbial Metabolism

A(n) (oxidation/reduction/transport) reaction is one in which a molecule accepts an electron.

Significant amounts of the NADPH required for the Calvin-Benson cycle are produced during the (cyclic/noncyclic) photophosphorylation reactions of photosynthesis.

Reactions that are both catabolic and anabolic are amphibolic.

Accumulation of a metabolic pathway product may result in decreased activity of the pathway enzymes.

Anaerobic bacteria may use ________ as the final electron acceptor during anaerobic respiration.

Enzymes known as lyases participate in ________ reactions.

Anaerobic respiration involves the use of molecules other than oxygen as the final electron (acceptor/donor) in an electron transport chain.

Beta-oxidation of fatty acids produces (acetic acid/acetyl-CoA/glycerol).

Many vitamins are important ________ of enzymes.

Explain why the ATP yield from processes such as cellular respiration is generally given as a theoretical number.

Which of the following is/are common to chemiosmosis and the light-dependent reactions of photosynthesis?

All the precursors of amino acids are intermediates of glycolytic and fermentation pathways.

The pentose phosphate pathway generates all the necessary precursors for nucleotide biosynthesis.

Which of the following statements concerning cellular metabolism is FALSE?

Pyruvic acid is a product of

Only Photosystem I is required for (anoxygenic/cyclic/noncyclic) photophosphorylation to occur.

A Brief History of Microbiology

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