Question

Rearrange the following stages of Calvin cycle in correct order.
1. Reduction during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH.
2. Regeneration, during which the carbon dioxide acceptor ribulose-1,5-biphosphate is formed.
3. Carboxylation during which carbon dioxide combines with ribulose-1,5-biphosphate.

• A. 3 --> 1 --> 2
• B. 3--> 2
• C. 1 --> 2 --> 3
• D. 2 --> 1 --> 3
• E. 1 --> 3 --> 2

Answer 1

The correct option is A 3 --> 1 --> 2

In Calvin Cycle, carboxylation is during which carbon dioxide combines with ribulose-1,5-bisphosphate. Reduction is the second step during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH. Regeneration is the third step, during which the carbon dioxide acceptor ribulose- 1,5- bisphosphate is formed and regenerated back.