Question 1

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

Accepted Answer

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

Question 2

Non-cyclic photophosphorylation requires photosystem II.

Accepted Answer

A) True 
 B)False

Question 3

The catalytic component of a ribozyme is

Accepted Answer

A)   an apoenzyme.
B)   a cofactor.
C)   RNA.
D)   a coenzyme.
E)   FADH.F) B) and D)
G) None of the above

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

As the concentration of substrate increases, the activity of the enzyme decreases.

Accepted Answer

A) True 
 B)False

Question 6

The habitat of a photosynthetic organism is largely determined by the

Accepted Answer

A)   amount of available hydrogen.
B)   chlorophylls it produces.
C)   carbohydrates it can metabolize.
D)   products of its light-independent reactions.
E)   amount of available oxygen.F) None of the above
G) A) and C)

Question 7

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 +F) C) and D)
G) B) and D) D

Question 8

During chemiosmosis, electrons are pumped across a membrane to produce ATP.

Accepted Answer

A) True 
 B)False

Question 9

Waste products such as sulfur are produced by (oxygenic/anoxygenic/aerobic) photosynthetic bacteria as they obtain electrons for noncyclic photophosphorylation.

Accepted Answer

The answer of Waste products such as sulfur are produced...

Question 10

Anabolic reactions may be characterized as

Accepted Answer

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

Question 11

Compare and contrast cyclic and noncyclic photophosphorylation.

Accepted Answer

Both cyclic photophosphorylation and non...

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A)   energy-conservation
B)   energy-investment
C)   lysis
D)   lysis and energy-conservation
E)   energy-investment and conservationF) None of the above
G) All of the above

Question 14

Laboratory fermentation tests often include a pH indicator because many bacteria produce (hydroxyls/bases/acids) as they ferment carbohydrates.

Accepted Answer

The answer of Laboratory fermentation tests often include a pH...

Question 15

Beta oxidation of fatty acids produces substrates for the (Calvin-Benson/Entner-Doudoroff/Krebs) cycle.

Accepted Answer

Krebs

Question 16

During glycolysis, glucose is converted to (pyruvic/acetic/lactic) acid, a molecule that can be used in either fermentation or respiration pathways.

Accepted Answer

pyruvic

Question 17

The majority of the energy captured in the Krebs cycle is in the form of (ATP/FADH2/NADH).

Accepted Answer

The answer of The majority of the energy captured in...

Question 18

The (activation/inhibition/saturation) point of an enzyme is reached when all active sites have bound substrate molecules.

Accepted Answer

The answer of The (activation/inhibition/saturation) point of an enzyme is...

Question 19

All of the following are ways in which cells regulate metabolism EXCEPT

Accepted Answer

A)   isolation of various enzymes within membranous organelles.
B)   synthesis of a catabolic enzyme only when its substrate is available.
C)   use of the same coenzymes for anabolic and catabolic reactions that share substrate molecules.
D)   feedback inhibition by end products.
E)   synthesis or degradation of membrane transport proteins.F) C) and E)
G) A) and E)

Question 20

How many ATP molecules can theoretically be produced from the NADH generated by the catabolism of a molecule of glucose during aerobic respiration?

Accepted Answer

A)   4
B)   30
C)   36
D)   38
E)   34F) A) and E)
G) D) and E)

Exam 5: Microbial Metabolism

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

Correct AnswerverifiedShow Answer

Non-cyclic photophosphorylation requires photosystem II.

Correct AnswerverifiedShow Answer

The catalytic component of a ribozyme is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

As the concentration of substrate increases, the activity of the enzyme decreases.

Correct AnswerverifiedShow Answer

The habitat of a photosynthetic organism is largely determined by the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

During chemiosmosis, electrons are pumped across a membrane to produce ATP.

Correct AnswerverifiedShow Answer

Waste products such as sulfur are produced by (oxygenic/anoxygenic/aerobic) photosynthetic bacteria as they obtain electrons for noncyclic photophosphorylation.

Correct AnswerverifiedShow Answer

Anabolic reactions may be characterized as

Correct AnswerverifiedShow Answer

Compare and contrast cyclic and noncyclic photophosphorylation.

Correct AnswerverifiedBoth cyclic photophosphorylation and non...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Laboratory fermentation tests often include a pH indicator because many bacteria produce (hydroxyls/bases/acids) as they ferment carbohydrates.

Correct AnswerverifiedShow Answer

Beta oxidation of fatty acids produces substrates for the (Calvin-Benson/Entner-Doudoroff/Krebs) cycle.

Correct AnswerverifiedKrebs

During glycolysis, glucose is converted to (pyruvic/acetic/lactic) acid, a molecule that can be used in either fermentation or respiration pathways.

Correct Answerverifiedpyruvic

The majority of the energy captured in the Krebs cycle is in the form of (ATP/FADH2/NADH).

Correct AnswerverifiedShow Answer

The (activation/inhibition/saturation) point of an enzyme is reached when all active sites have bound substrate molecules.

Correct AnswerverifiedShow Answer

All of the following are ways in which cells regulate metabolism EXCEPT

Correct AnswerverifiedShow Answer

How many ATP molecules can theoretically be produced from the NADH generated by the catabolism of a molecule of glucose during aerobic respiration?

Correct AnswerverifiedShow Answer

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D

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Both cyclic photophosphorylation and non...
View Answer

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Krebs

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pyruvic

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