Question

Enzymes of photorespiration are present in

• A. mitochondria
• B. chloroplast
• C. peroxisomes
• D. mitochondria, chloroplast and peroxisomes.

Answer 1

The correct option is D mitochondria, chloroplast and peroxisomes.

Photorespiration (also known as the oxidative photosynthetic carbon cycle, or C₂ photosynthesis) refers to a process in plant metabolism where the enzyme RuBisCO oxygenates RuBP, causing some of the energy produced by photosynthesis to be wasted. And specialized reactions within three classes of organelles in leaf cells are required, namely chloroplasts, peroxisomes (originally called microbodies) and mitochondria.