IGNOU BBCET 151 2026 - Describe different phases of Calvin cycle.

Question

Describe different phases of Calvin cycle.

03 Feb 2026

Answer :

Word Count : 317

The Calvin cycle, also known as the light-independent reactions or the dark reaction of photosynthesis, is a series of biochemical processes that occur in the stroma of chloroplasts. It plays a crucial role in the synthesis of organic molecules, specifically glucose, from carbon dioxide. The cycle consists of three main phases: carbon fixation, reduction, and regeneration of RuBP (ribulose bisphosphate). In the first phase, carbon fixation, the enzyme ribulose bisphosphate carboxylase/oxygenase (RuBisCO) catalyzes the attachment of carbon dioxide to

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