Photosynthesis is the process of preparing food in the presence of sunlight and chlorophyll. In this process, the plant uses water from the soil, carbon dioxide from the air. It occurs in green plants, certain algae, blue-green algae and bacteria.
Importance of photosynthesis
The process of photosynthesis plays an important role in such ways:
Plant prepares their food by photosynthesis. The plants, in turn, are eaten by the animals.
Photosynthesis convert radiant or solar energy into chemical energy.
Productivity of agricultural crops directly depends upon the rate of photosynthesis.
It provides oxygen in atmosphere for all living organisms.
It maintains the balanced level of oxygen and carbon dioxide ecosystem.
Fossil fuels are derived from plants. Energy stored in fuel is originally trapped from sun druring photosynthesis.
Process of photosynthesis
1. Photosynthesis is a chemical process that uses sunlight to turn carbon dioxide into sugars the cell can use as energy. 2. Carbon dioxide + Water + light energy --> Glucose + Oxygen 3. Photosynthesis has two main sets of reactions. Light-dependent reactions need light to work; and light-independent reactions, which do not need light to work.