Question Detail

BIO 101 BIO 101 Past Questions Objective Question
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Question

How does photorespiration negatively impact plant efficiency?
Options
A Increases oxygen production
B Consumes oxygen and releases CO2, reducing carbon fixation
Correct Answer
C Enhances glucose synthesis
D Boosts ATP generation
Correct Answer

Option B is the correct answer.

Detailed Explanation

Photorespiration occurs when RuBisCO binds O2 instead of CO2. This process consumes ATP and oxygen, releases previously fixed CO2, and does not produce sugar, thereby reducing photosynthetic efficiency.

Hint

It's a wasteful side reaction that competes with carbon fixation.

Question Info

Course: BIO 101
Topic: BIO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 704 of 2556
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