Question

During photorespiration which compounds are formed having 2C anc 3C respectively in peroxisome?

• A. Glycolate and glycine
• B. Glycine and glycerate
• C. Serine and glycine
• D. Phosphoglycerate and glycolate

Answer 1

Answer: (B)

Glycine and glycerate

Photorespiration is also called as oxidative photosynthetic carbon cycle. It is a process in which RuBisCO enzyme oxygenates RuBP. This results in loss of some of the energy produced by photosynthesis. This process recovers some of the carbon from the excess glycolate. In peroxisome, glyoxylate is converted into an amino acid glycine by a transamination re­action. Glyoxylate and glycine are 2-C compounds and glycolate is 3-C compound.

Thus, the correct answer is option B.