Calvin cycle consists of three phases, what are these? Mention where t

1.	Calvin cycle consists of three phases, what are these? Mention where this cycle takes place and explain only first phase of this cycle.
Answer» Calvin cycle proceeds in three stages: Carboxylation, Reduction and Regeneration. It takes place in the stroma of chloroplasts. First phase of this cycle is carboxylation: (a) Carboxylation is the fixation of CO₂ into a stable organic intermediate. (b) Ribulose 1, 5-bisphosphate combines with CO₂, and fixes it to a stable organic intermediate 3C compound called 3-phosphoglycerate (2molecules). 3 PGA is the first stable product of this cycle. (c) Reaction is catalysed by the enzyme RuBisCO (RuBP Carboxylase-Oxygenase).

Calvin cycle consists of three phases, what are these? Mention where this cycle takes place and explain only first phase of this cycle.

Answer»

Calvin cycle proceeds in three stages: Carboxylation, Reduction and Regeneration. It takes place in the stroma of chloroplasts.

First phase of this cycle is carboxylation:

(a) Carboxylation is the fixation of CO₂ into a stable organic intermediate.

(b) Ribulose 1, 5-bisphosphate combines with CO₂, and fixes it to a stable organic intermediate 3C compound called 3-phosphoglycerate (2molecules). 3 PGA is the first stable product of this cycle.

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Calvin cycle consists of three phases, what are these? Mention where this cycle takes place and explain only first phase of this cycle.

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