Biochemistry - Photosynthesis and Respiration

Exercise :: Photosynthesis and Respiration - Section 1

  • Photosynthesis and Respiration - Section 1
26. 

Which of the following serves as a reactant in photosynthesis and a product in cellular respiration?

A. O2
B. CO2
C. Sunlight
D. ATP

Answer: Option B

Explanation:

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27. 

Hydrogen (electron) acceptor in the light reactions is

A. ADP
B. NADP+
C. NAD+
D. FADH

Answer: Option B

Explanation:

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28. 

The cytochrome c oxidase complex

A. accepts electrons from cyt c
B. donates four electrons to O2
C. pumps protons out of the matrix space
D. all of these

Answer: Option D

Explanation:

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29. 

In the Calvin cycle, carbon dioxide is fixed in a reaction with the

A. ribulose diphosphate
B. ribulose phosphate
C. ribose tri phosphate
D. 3-phosphoglyceric acid

Answer: Option A

Explanation:

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30. 

What do NAD+, NADP+, and FAD+ all have in common?

A. They are reduced
B. They have a full complement of electrons
C. They are oxidized
D. They are what is used during carbon fixation in photosynthesis

Answer: Option C

Explanation:

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