Question 1

Beta- oxidation of fatty acids produces a substrate of the

Accepted Answer

A)  Entner- Doudoroff pathway. 
B)  Embden- Meyerhof pathway. 
C)  Krebs cycle. 
D)  pentose phosphate pathway. 
E)  Calvin- Benson cycle. 
A)  Entner- Doudoroff pathway. 
B)  Embden- Meyerhof pathway. 
C)  Krebs cycle. 
D)  pentose phosphate pathway. 
E)  Calvin- Benson cycle. C

Question 2

Hydrolases are generally involved 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 B

Question 3

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

Accepted Answer

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

Question 4

Which of the following products of glucose catabolism is a substrate for fatty acid synthesis?

Accepted Answer

A)  phosphoglyceric acid 
B)  succinyl- CoA 
C)  oxaloacetate 
D)  pyruvic acid 
E)  acetyl- CoA 
A)  phosphoglyceric acid 
B)  succinyl- CoA 
C)  oxaloacetate 
D)  pyruvic acid 
E)  acetyl- CoA

Question 5

Anabolic reactions may be characterized as

Accepted Answer

A)  breaking large molecules into smaller molecules. 
B)  exergonic. 
C)  producing ATP. 
D)  forming large molecules from smaller molecules. 
E)  breaking large molecules into smaller molecules to produce ATP. 
A)  breaking large molecules into smaller molecules. 
B)  exergonic. 
C)  producing ATP. 
D)  forming large molecules from smaller molecules. 
E)  breaking large molecules into smaller molecules to produce ATP.

Question 6

Compare and contrast cyclic and noncyclic photophosphorylation.

Accepted Answer

Both cyclic photophosphorylation and non

Question 7

Reactions involving ligases are typically reactions.

Accepted Answer

A)  anabolic 
B)  catabolic 
C)  both anabolic and catabolic 
D)  neither anabolic nor catabolic 
E)  exergonic 
A)  anabolic 
B)  catabolic 
C)  both anabolic and catabolic 
D)  neither anabolic nor catabolic 
E)  exergonic

Question 8

The ability to utilize different metabolites for cellular respiration is one method for identifying bacteria.

Accepted Answer

A) True 
 B)False

Question 9

Glycolysis begins with a(n) stage(s).

Accepted Answer

A)  energy- investment 
B)  energy- conservation 
C)  lysis 
D)  lysis and energy- conservation 
E)  energy- investment and conservation 
A)  energy- investment 
B)  energy- conservation 
C)  lysis 
D)  lysis and energy- conservation 
E)  energy- investment and conservation

Question 10

Which of the following is a by- product of the catabolism of proteins?

Accepted Answer

A)  lactic acid 
B)  ammonia 
C)  proteases 
D)  acetyl- CoA 
E)  carbon dioxide 
A)  lactic acid 
B)  ammonia 
C)  proteases 
D)  acetyl- CoA 
E)  carbon dioxide

Question 11

Environmental changes can result in the inactivation of enzymes.

Accepted Answer

A) True 
 B)False

Question 12

Synthesis of the precursors of purines and pyrimidines requires transamination of ribose- 5- phosphate.

Accepted Answer

A) True 
 B)False

Question 13

The molecule that an enzyme acts upon is known as its

Accepted Answer

A)  substrate. 
B)  catalyst. 
C)  coenzyme. 
D)  holoenzyme. 
E)  apoenzyme. 
A)  substrate. 
B)  catalyst. 
C)  coenzyme. 
D)  holoenzyme. 
E)  apoenzyme.

Question 14

Describe the mechanism of feedback inhibition and the role this process plays in controlling enzyme activity.

Accepted Answer

Feedback inhibition is also known as neg

Question 15

Which of the following is associated with the Calvin- Benson cycle?

Accepted Answer

A)  TMAO 
B)  acetyl- CoA 
C)  PABA 
D)  RuBP 
E)  FADH2 
A)  TMAO 
B)  acetyl- CoA 
C)  PABA 
D)  RuBP 
E)  FADH2

Question 16

Which of the following is required for holoenzyme function?

Accepted Answer

A)  a substrate 
B)  a coenzyme 
C)  an activator 
D)  an allosteric inhibitor 
E)  a protein cofactor 
A)  a substrate 
B)  a coenzyme 
C)  an activator 
D)  an allosteric inhibitor 
E)  a protein cofactor

Question 17

The conversion of amino acids to carbohydrates is an example of

Accepted Answer

A)  amination. 
B)  gluconeogenesis. 
C)  beta- oxidation. 
D)  electron transport. 
E)  substrate- level phosphorylation. 
A)  amination. 
B)  gluconeogenesis. 
C)  beta- oxidation. 
D)  electron transport. 
E)  substrate- level phosphorylation.

Question 18

Electrons are transferred in the Krebs cycle in the form of (oxygen/hydrogen) atoms to NAD+ and FAD.

Accepted Answer

The answer of Electrons are transferred in the Krebs cycle...

Question 19

When a cell forms an amino acid by adding an amine group derived from ammonia to a precursor metabolite, this process is called

Accepted Answer

A)  deamination. 
B)  reduction. 
C)  amination. 
D)  transamination. 
E)  polymerization. 
A)  deamination. 
B)  reduction. 
C)  amination. 
D)  transamination. 
E)  polymerization.

Question 20

The metabolic processes called fermentation

Accepted Answer

A)  produce substrates for glycolysis. 
B)  use an organic molecule as a final electron acceptor. 
C)  are alternatives for the pentose phosphate pathway. 
D)  produce substrates for the Krebs cycle. 
E)  occur only when oxygen is readily available. 
A)  produce substrates for glycolysis. 
B)  use an organic molecule as a final electron acceptor. 
C)  are alternatives for the pentose phosphate pathway. 
D)  produce substrates for the Krebs cycle. 
E)  occur only when oxygen is readily available.

Exam 5: Microbial Metabolism

Beta- oxidation of fatty acids produces a substrate of the

Hydrolases are generally involved in reactions.

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

Which of the following products of glucose catabolism is a substrate for fatty acid synthesis?

Anabolic reactions may be characterized as

Compare and contrast cyclic and noncyclic photophosphorylation.

Reactions involving ligases are typically reactions.

The ability to utilize different metabolites for cellular respiration is one method for identifying bacteria.

Glycolysis begins with a(n) stage(s).

Which of the following is a by- product of the catabolism of proteins?

Environmental changes can result in the inactivation of enzymes.

Synthesis of the precursors of purines and pyrimidines requires transamination of ribose- 5- phosphate.

The molecule that an enzyme acts upon is known as its

Describe the mechanism of feedback inhibition and the role this process plays in controlling enzyme activity.

Which of the following is associated with the Calvin- Benson cycle?

Which of the following is required for holoenzyme function?

The conversion of amino acids to carbohydrates is an example of

Electrons are transferred in the Krebs cycle in the form of (oxygen/hydrogen) atoms to NAD+ and FAD.

When a cell forms an amino acid by adding an amine group derived from ammonia to a precursor metabolite, this process is called

The metabolic processes called fermentation

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