Botany-Calvin Cycle

NEET Botany Calvin Cycle MCQ Question

Type: MCQ-fact-Hard-Class 11

What is the first stable product formed during the CO2 fixation step in the Calvin cycle for C3 plants?

A

3-phosphoglycerate (3PGA)

B

Oxaloacetic acid (OAA)

C

Ribulose bisphosphate (RuBP)

D

Triose phosphate

Correct Answer

Option A

Detailed Explanation

In the Calvin cycle of C3 plants, the first stable product formed from the combination of RuBP and CO2 is 3-phosphoglycerate (3PGA). This is a key reaction in the Calvin pathway.

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