Question

During what stage of photosynthesis is ATP converted to ADP?

• A. During electron transfer
• B. During entry of carbon dioxide inside the leaf
• C. During conversion of carbon dioxide to glucose
• D. During the breakdown of water

Answer 1

The correct option is C

During conversion of carbon dioxide to glucose

Conversion of ATP to ADP takes place when the carbohydrate is formed. Reduction of carbon to form intermediate carbohydrate compounds and finally to glucose requires energy. This energy is obtained from ATP molecules by breaking the energy-rich phosphate bonds, thus resulting in the production of ADP.