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Q. 1.  What are the differences between autotrophic nutrition and heterotrophic nutrition?

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The differences between autotrophic nutrition and heterotrophic nutrition are given below:

Autotrophic Nutrition Heterotrophic Nutrition
(i) Food is synthesized by the organism itself by using the energy from sunlight using simple molecules like H2O and COthrough photosynthesis. (i) The organism is dependent on other organisms for food as Heterotrophic organisms cannot prepare their food by themselves as autotrophs do.
(ii) A green pigment called chlorophyll is necessary as it entraps the energy from sunlight. (ii) No such pigment is required in this mode of nutrition.
(iii) All green plants and bacteria have this mode of nutrition, (iii) All animals and some fungi have this mode of nutrition.

 

 

 

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