Question

First product of photorespiration is

• A. Phosphoglycolate
• B. Glycolate
• C. Glycine
• D. None of the above

Answer 1

The correct option is A Phosphoglycolate

Photorespiration is the uptake of oxygen and release of carbon dioxide in light and results from the biosynthesis of glycolate in chloroplasts and subsequent metabolism of glycolate acid in the leaf cell which provide the first product as two molecules of phosphoglycolate which undergoes various step reaction to form three phosphoglyceric acid in C${}_3$ plants by entering Calvin cycle.

So the correct option is 'Phosphoglycolate'