Question

A gas is released during photosynthesis. Name the gas and also state the way by which the gas is evolved.

Answer 1

The gas released during photosynthesis is Oxygen (O₂). Oxygen liberated during photosynthesis comes from water.

During photosynthesis, plants absorb carbon dioxide and sunlight to produce carbohydrates. The solar energy trapped by chlorophyll breaks down water molecules by the process of photolysis. It is a type of photo-oxidation reaction that releases oxygen. This released oxygen gets emitted in the atmosphere.