EVERYDAY SCIENCE

Detailed explanation-1: -Cyclic phosphorylation occurs in green sulphur bacteria, hence oxygen is not produced during photosynthesis.

Detailed explanation-2: -Carbon dioxide is not released during photosynthesis, but small amounts of that gas are emitted both day and night as a by-product of cellular respiration.

Detailed explanation-3: -Photosynthesis takes place in mesophyll cells. From the above information we have found that carbon dioxide is not released during photosynthesis. Instead of it oxygen is released. Hence, the correct answer is option (B).

Detailed explanation-4: -Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.