Question

question 9
1 pts
what is the name of the process that produces atp during the light reactions of photosynthesis?
photolysis
osmosis
substrate level phosphorylation
none of the above
chemiosmosis

Explanation:

• Photolysis is the splitting of water molecules in the light reactions.
• Osmosis is the movement of water across a semi - permeable membrane.
• Substrate - level phosphorylation occurs in processes like glycolysis (not the light reactions of photosynthesis).
• Chemiosmosis is the process that uses a proton gradient to produce ATP. In the light reactions of photosynthesis, a proton gradient is established across the thylakoid membrane, and ATP synthase uses this gradient to synthesize ATP via chemiosmosis.

Answer:

E. chemiosmosis