Question

Photorespiration lowers the efficiency of photosynthesis by preventing the formation of

• A. carbon dioxide molecules
• B. 3-phosphoglycerate molecules
• C. ATP molecules.
• D. ribulose bisphosphate molecules

Answer 1

The correct option is B

3-phosphoglycerate molecules

Photorespiration occurs when oxygen interferes with the Kelvin Cycle by causing RuBisCo to fix an O${}_2$ to RuBP instead of CO${}_2$.