Q.7: What are the necessary conditions for autotrophic nutrition and what are its by-products?
The following the necessary conditions for autotrophic nutrition:
1. Presence of chlorophyll in the living cells.
2. Provision of supply of water to green parts or cells of the plant either through roots or by surrounding environment.
3. Availability of sufficient sunlight to provide the energy required to carry out photosynthesis.
4. Sufficient supply of carbon dioxide which is one of the important components for the formation of carbohydrates during photosynthesis.
The by-products of autotrophic nutrition are starch (carbohydrate) and oxygen.