Question 1

Reduction of nitrate to nitrite by Paracoccus denitrificans is an example of anaerobic respiration.

Accepted Answer

A) True 
 B)False  True

Question 2

In the process of noncyclic photophosphorylation

Accepted Answer

A)   water is split to form oxygen gas.
B)   electrons from water flow through electron transport chains resulting in synthesis of ATP and NADPH.
C)   photosystems I and II are both required.
D)   all of the choicesE) B) and C)
F) A) and C)

Question 3

After glycolysis, pyruvate is oxidized to one CO2 and the two-carbon molecule acetyl-CoA by a multienzyme system called the ________ ________ complex.

Accepted Answer

pyruvate d...

Question 4

How many molecules of ATP are needed to reduce one molecule of carbon dioxide to carbohydrate by oxygenic phototrophs during the dark reactions of photosynthesis?

Accepted Answer

A)   2
B)   3
C)   4
D)   10-12E) B) and C)
F) All of the above

Question 5

Amino acids are processed first by the removal of the amino group through

Accepted Answer

A)   deamination.
B)   transamination.
C)   phosphorolytic cleavage.
D)   deamination or transaminationE) C) and D)
F) A) and B)

Question 6

When cells of a facultative anaerobe such as Paracoccus denitrificans are growing under anaerobic conditions and using nitrate as the terminal electron acceptor, ______________ nitrate reduction is occurring.

Accepted Answer

The answer of When cells of a facultative anaerobe such...

Question 7

The number of ATP molecules generated per atom of oxygen that is reduced when electrons are passed from NADH or reduced FAD (FADH)  to O2 is called the

Accepted Answer

A)   utilization ratio.
B)   energy yield.
C)   P/O ratio.
D)   phosphorylation coefficient.E) None of the above
F) A) and D) C

Question 8

Large external polysaccharides are degraded by bacteria and archaea using ________ ________, which secrete these substances outside the cell.

Accepted Answer

hydrolytic enzymes

Question 9

Photosynthetic electron transport in cyanobacteria takes place

Accepted Answer

A)   on the plasma membrane.
B)   in the chloroplast.
C)   in the cytoplasm.
D)   on the thylakoid membranes.E) B) and D)
F) B) and C)

Question 10

The most common pathway for conversion of glucose to pyruvate is

Accepted Answer

A)   Entner-Doudoroff.
B)   Pentose phosphate.
C)   Embden-Meyerhoff.
D)   mixed acid fermentation.E) B) and D)
F) None of the above

Question 11

The electron transport systems in eukaryotes and prokaryotes use different electron carriers.

Accepted Answer

A) True 
 B)False

Question 12

In the process of __________, ATP is synthesized when excited electrons from chlorophyll P700 pass through a series of electron carriers then return to chlorophyll P700.

Accepted Answer

A)   photosynthesis
B)   cyclic photophosphorylation
C)   acyclic photophosphorylation
D)   noncyclic photophosphorylationE) A) and B)
F) B) and C)

Question 13

The most commonly accepted hypothesis for the production of ATP that results from electron transport system is called the __________ hypothesis.

Accepted Answer

The answer of The most commonly accepted hypothesis for the...

Question 14

All eukaryotic photosynthesizers are oxygenic.

Accepted Answer

A) True 
 B)False

Question 15

Prokaryotes may use several different terminal oxidases for the electron transport system.

Accepted Answer

A) True 
 B)False

Question 16

Fatty acids are metabolized by the __________ pathway.

Accepted Answer

A)   alpha-oxidation
B)   beta-oxidation
C)   gamma-oxidation
D)   delta-oxidationE) None of the above
F) All of the above

Question 17

Which of the following is NOT true regarding ATP synthases?

Accepted Answer

A)   They require proton motive force to make ATP.
B)   They span the inner membrane of mitochondria.
C)   The proton flow is outward during ATP synthesis.
D)   The subunits of ATP synthase undergo conformational changes during ATP production.E) None of the above
F) A) and B)

Question 18

The hypothesis that proton motive force drives ATP synthesis is called the __________ hypothesis.

Accepted Answer

The answer of The hypothesis that proton motive force drives...

Question 19

All prokaryotic photosynthesizers are anoxygenic.

Accepted Answer

A) True 
 B)False

Question 20

How many molecules of NADPH are needed to reduce one molecule of carbon dioxide to carbohydrate by oxygenic phototrophs during the dark reactions of photosynthesis?

Accepted Answer

A)   2
B)   3
C)   4
D)   10-12E) A) and D)
F) All of the above

Exam 10: Catabolism Energy Release and Conservation

Reduction of nitrate to nitrite by Paracoccus denitrificans is an example of anaerobic respiration.

Correct AnswerverifiedTrue

In the process of noncyclic photophosphorylation

Correct AnswerverifiedShow Answer

After glycolysis, pyruvate is oxidized to one CO2 and the two-carbon molecule acetyl-CoA by a multienzyme system called the ________ ________ complex.

Correct Answerverifiedpyruvate d...View AnswerShow Answer

How many molecules of ATP are needed to reduce one molecule of carbon dioxide to carbohydrate by oxygenic phototrophs during the dark reactions of photosynthesis?

Correct AnswerverifiedShow Answer

Amino acids are processed first by the removal of the amino group through

Correct AnswerverifiedShow Answer

When cells of a facultative anaerobe such as Paracoccus denitrificans are growing under anaerobic conditions and using nitrate as the terminal electron acceptor, ______________ nitrate reduction is occurring.

Correct AnswerverifiedShow Answer

The number of ATP molecules generated per atom of oxygen that is reduced when electrons are passed from NADH or reduced FAD (FADH) to O2 is called the

Correct AnswerverifiedC

Large external polysaccharides are degraded by bacteria and archaea using ________ ________, which secrete these substances outside the cell.

Correct Answerverifiedhydrolytic enzymes

Photosynthetic electron transport in cyanobacteria takes place

Correct AnswerverifiedShow Answer

The most common pathway for conversion of glucose to pyruvate is

Correct AnswerverifiedShow Answer

The electron transport systems in eukaryotes and prokaryotes use different electron carriers.

Correct AnswerverifiedShow Answer

In the process of __________, ATP is synthesized when excited electrons from chlorophyll P700 pass through a series of electron carriers then return to chlorophyll P700.

Correct AnswerverifiedShow Answer

The most commonly accepted hypothesis for the production of ATP that results from electron transport system is called the __________ hypothesis.

Correct AnswerverifiedShow Answer

All eukaryotic photosynthesizers are oxygenic.

Correct AnswerverifiedShow Answer

Prokaryotes may use several different terminal oxidases for the electron transport system.

Correct AnswerverifiedShow Answer

Fatty acids are metabolized by the __________ pathway.

Correct AnswerverifiedShow Answer

Which of the following is NOT true regarding ATP synthases?

Correct AnswerverifiedShow Answer

The hypothesis that proton motive force drives ATP synthesis is called the __________ hypothesis.

Correct AnswerverifiedShow Answer

All prokaryotic photosynthesizers are anoxygenic.

Correct AnswerverifiedShow Answer

How many molecules of NADPH are needed to reduce one molecule of carbon dioxide to carbohydrate by oxygenic phototrophs during the dark reactions of photosynthesis?

Correct AnswerverifiedShow Answer

Correct Answer
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True

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After glycolysis, pyruvate is oxidized to one CO₂ and the two-carbon molecule acetyl-CoA by a multienzyme system called the complex.

Correct Answer
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pyruvate d...
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The number of ATP molecules generated per atom of oxygen that is reduced when electrons are passed from NADH or reduced FAD (FADH) to O₂ is called the

Correct Answer
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C

Large external polysaccharides are degraded by bacteria and archaea using , which secrete these substances outside the cell.

Correct Answer
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hydrolytic enzymes

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