Question

Choose the correct answer from each of the four given options:
Which of the following takes place during the photolysis reaction in grana?

[1 Mark ]

• A. Water splits into hydrogen and oxygen to generate ATP.
• B. Carbon dioxide splits into oxygen to generate ATP.
• C. Carbon dioxide splits into oxygen to generate glucose.
• D. Water splits into carbon dioxide to generate ATP.

Answer 1

The correct option is A Water splits into hydrogen and oxygen to generate ATP.

Photolysis of water during the light reaction breaks water molecules apart to generate oxygen. This requires energy that is obtained from sunlight and is used to power the production of ATP, the energy currency of the cell.