Explain the mechanism of photosynthesis.

Explanation

Photosynthesis: The process by which green plants prepare food is called photosynthesis. The whole process of photosynthesis can be shown by following equation:
`6CO_2+6H_2O overset"Sunlight energy"underset"Chlorophyll" to C_6H_12O_6+6O_2+"Energy"`
Steps of Photosynthesis :
This process involves the following steps:
(i) Absorption of optimum sunlight which activates chlorophyll the photosynthetic pigments, which leads to splitting of water molecule (ii) Photolysis of water molecule to split H and O for further steps.
(iii) Released H is utilized in the reduction of `CO_2` produce carbohydrate.
(iv) Carbohydrate is further converted to starch and distributed in different body parts of plant and is stored in leaves and other storage parts.
(v) `O_2` is released as a by-product in this process. In this whole process, light energy is converted into chemical energy.