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NEET2010BotanyPhotosynthesis in Higher PlantsActual

The first stable product of Calvin cycle is

Options

  1. A3-phosphoglycerate
  2. B1, 3 biphosphoglycerate
  3. Cglyceraldehyde - 3 phosphate
  4. Dribulose - 5-phosphate.

Correct answer

A. 3-phosphoglycerate

Step-by-step solution

Calvin pathway occurs in all photosynthetic plants which is CO ₂ fixation cycle. Carbon dioxide combines with ribulose-1, 5-biphosphate (RuBp) to produce a transient intermediate compound. The intermediate compound splits up immediately in the presence of water to form the two molecules of 3-phosphoglycerate or 3-PGA. It is the first stable product of photosynthesis.

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