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NEET2024BotanyPhotosynthesis in Higher PlantsActual

Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option.

Options

  1. AA-Carboxylation, B-Regeneration, C-Reduction
  2. BA-Reduction, B-Decarboxylation, C-Regeneration
  3. CA-Carboxylation, B-Reduction, C-Regeneration
  4. DA-Reduction, B-Carboxylation, C-Regeneration

Correct answer

C. A-Carboxylation, B-Reduction, C-Regeneration

Step-by-step solution

The calvin cycle proceeds in three stages: (A) Carboxylation, during which CO ₂ combines with ribulose-1,5-bisphosphate. (B) Reduction, during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH. (C) Regeneration during which the CO ₂ acceptor ribulose-1,5-bisphosphate is formed again so that the cycle continues.

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