LIFE SCIENCE

Detailed explanation-1: -In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Detailed explanation-2: -The light reaction of photosynthesis occurs in the presence of light which results in photolysis of water and it occurs in the grana of the chloroplast. Photosystems are present in the grana which are involved in the light reaction. ATP produced during light reaction is used up in the dark reaction of photosynthesis.