Question

First sugar formed in Calvin cycle is
(A) PGA
(B) PGAL
(C) OAA
(D) Malic acid​

Answer 1

First sugar formed in Calvin cycle isPGA

Answer 2

Explanation:

The first event in the Calvin cycle is the attachment of carbon dioxide to the five-carbon RuBP molecule In the Calvin cycle, carbon dioxide first combines with 5-C RuDP(Ribulose Diphosphate/bisphosphate) to form an unstable and unknown 6-C diphosphate compound. This compound then splits into two molecules of 3-PGA( phosphoglyceric acid).

So the correct answer is '3-PGA'.