Question

What are the differences between autotrophic nutrition and heterotrophic nutrition?​

Answer 1

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★Autotrophic Nutrition

$\longrightarrow$ The organisms that make their food from simple inorganic substances are called autotrophs, g., most green plants. Therefore, autotrophic nutrition refers to the process of nourishing, namely photosynthesis, that organisms adopt for growth and maintenance.

$\longrightarrow$ The raw materials required for preparation of food are CO, and H₂O.

$\longrightarrow$ Chlorophyll and sunlight are essential for photosynthesis and thus nutrition to occur.

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★ Heterotrophic Nutrition

$\longrightarrow$ The organisms which cannot make their own food and depend directly or indirectly on autotrophs for their survival are called heterotrophs, eg, animals and fungi. Heterotrophic nutrition refers to the process of nourishing, namely by obtaining food from other organisms, for their own growth and maintenance.

$\longrightarrow$ Heterotrophs are directly or indirectly dependent on autotrophs.

$\longrightarrow$ Chlorophyll and sunlight are not required.

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Answer 2

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Autotrophic Nutrition:

☞ The organisms are capable of preparing their own food using simple substances that are available in their surroundings.

☞ The conditions necessary for autotrophic nutrition are carbon dioxide, water, chlorophyll and water.

☞Plants are an example of autotrophic nutrition.

☞Autotrophs are the producers in the food chain.

heterotrophic nutrition:

☞ The organisms completely depend on others for their nutrition. They depend on surrounding plants and animals for food.

☞ They cannot make the food from available inorganic substances like carbon dioxide, water and sunlight.

☞ Animals and some plants are an example of heterotrophic nutrition

☞ Heterotrophs are the consumers in the food chain