Question

In which of the following process, oxygen is evolved?

• A. Respiration
• B. Ascent of sap
• C. Fat metabolism
• D. Photosynthesis

Answer 1

The correct option is D Photosynthesis

Photosynthesis is a redox reaction in which carbon dioxide is reduced to sugars and water is oxidised to release oxygen.

Photolysis refers to the light dependent split of the water molecule, which occurs during photosynthesis. The process of photolysis provides electrons for noncyclic electron flow during noncyclic photophosphorylation. Mineral ions required for the process of photolysis are manganese, calcium and chlorine.