Question

The correct sequence of organelles in which glycolate and glyoxylate are produced sequentially in photorespiration is

• A. Chloroplast and mitochondria
• B. Chloroplast and peroxisome
• C. Peroxisome and mitochondria
• D. Peroxisome and chloroplast

Answer 1

Answer: (B)

Chloroplast and peroxisome

The photorespiration is carried out in three organelles, the chloroplast, peroxisome and mitochondria. The RUBP reacts with the fixed oxygen to give phosphoglycolate which is converted to glycolate. This process occurs in the chloroplast. The glycolate is transported to the peroxisome. The glycolate is converted to form the glyoxylate. These two products are formed in chloroplast and the peroxisome respectively.

Thus, the correct answer is option B.