State the necessary conditions for autotrophic nutrition and Name the by-product. Mention the source of this by-product.
Autotrophic nutrition is the mode of nutrition in which the organisms prepare their own food with the help of certain conditions.
A necessary condition for autotrophic nutrition are:
1. Carbon dioxide: The plants take the carbon dioxide released by the animals. The carbon dioxide gets reduced to carbohydrates and hence, it is necessary for autotrophic nutrition.
2. Water: The plants get water from the roots. Water is necessary to provide hydrogen and oxygen for photosynthesis. Hence, water is necessary for autotrophic nutrition.
3. Sunlight: Plants absorbs light energy from the sun and this light energy is converted to chemical energy for the breakdown of water into hydrogen and oxygen. Hence, sunlight is important for autotrophic nutrition.
4. Chlorophyll: The chlorophyll is present in the chloroplast and it helps in the absorption of light energy which is useful for photosynthesis.
The byproducts of autotrophic nutrition are food in the form of carbohydrate and Oxygen.
The source of these by products are CO2, water, sunlight and chlorophyll.
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