Question
Biology Question on Calvin cycle
The first stable product of Calvin cycle is
A
3-phosphoglycerate
B
1, 3 biphosphoglycerate
C
glyceraldehyde - 3 phosphate
D
ribulose - 5- phosphate
Answer
3-phosphoglycerate
Explanation
Solution
Calvin pathway occurs in all photosynthetic plants which is CO 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.