Photosynthesis In Higher Plants Question 159

Question: Which of the following is present in Calvin cycle [CBSE PMT 1996]

Options:

A) Photophosphorylation

B) Oxidative carboxylation

C) Reductive carboxylation

D) Oxidative phosphorylation

Show Answer

Answer:

Correct Answer: C

Solution:

Reductive carboxylation starts with a 5-carbon sugar ribulose-5-phosphate.

6 mol of this sugar react with 6 mol of ATP (produced in light reaction) to form 6 mol of RuBP and 6 mol of ADP Ribulose 5-phosphate $ \xrightarrow{Phosphopentokinase} $ Ribulose 1,5-bisphosphate + 6ADP



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