Photosynthesis is defined as the process in which the chlorophyll-containing plant cells synthesize food in the form of carbohydrates, using carbon dioxide and water in the presence of solar energy.
Sources of raw materials required for photosynthesis:
a)Water is taken in, from the roots of the plants and is transported to leaves.
b)Carbon dioxide from the air enters the leaves through the pores called stomata and diffuses to the cells containing chlorophyll.
c)Solar energy is used to break water into hydrogen and oxygen. This hydrogen is combined with carbon dioxide to form food for the plants, which is ultimately used by the animals as well.
This photosynthesis can be represented by the following equation.
Carbondioxide+Water→Carbohydrates+Oxygen.
This reaction takes place in chlorophyll in the presence of sunlight.