College

Which compound is a metabolic intermediate of the light-independent reactions?

A. ATP
B. PGA
C. RuBP
D. NADPH

Answer :

Final answer:

OPGA (3-phosphoglycerate) is a metabolic intermediate of the light-independent phase of photosynthesis. It is formed in the Calvin cycle and is further converted into other compounds to produce carbohydrates.


Explanation:

The compound that is a metabolic intermediate of the light-independent phase of photosynthesis is OPGA (3-phosphoglycerate).

In the Calvin cycle, OPGA is formed through the reduction of 1,3-bisphosphoglycerate (1,3-BPG) by the enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH).

OPGA is then further converted into other compounds like glyceraldehyde-3-phosphate (G3P) and triose phosphate to complete the cycle and produce carbohydrates.


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