Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

Why is cyclic photophosphorylation used under certain conditions?
Options
A To produce additional ATP when NADPH is in excess
Correct Answer
B To increase carbon fixation
C To fix nitrogen in the stroma
D To enhance G3P production
Correct Answer

Option A is the correct answer.

Detailed Explanation

Cyclic electron flow uses only Photosystem I and generates ATP without producing NADPH or oxygen. It supplements ATP when the Calvin cycle's demand for ATP is higher than its demand for NADPH.

Hint

It's a way to adjust the ratio of energy carriers produced.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 699 of 2556
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