Question

difference between autotrophic and heterotrophic nutrition

Answer 1

Autotrophic Nutrition In autotrophic nutrition organism prepares its food from simple substances present in the surroundings .Heterotrophic Nutrition In heterotrophic nutrition organism obtains food from digesting organic compounds .Autotrophic Nutrition Autotrophs are the producers in the food chain .Heterotrophic Nutrition Heterotrophs are the consumers in the food chain .Autotrophic Nutrition Example : Plants obtain food by autotrophic nutrition .Heterotrophic Nutrition Example : Some plants and all animals obtain food by heterotrophic nutrition .Autotrophic Nutrition utotrophs are fundamental to the food chains of all ecosystems in the world. They take energy from the environment in the form of sunlight or inorganic chemicals and use it to create energy-rich molecules such as carbohydrates. This mechanism is called primary production.Heterotrophic Nutrition Other organisms, called heterotrophs, take in autotrophs as food to carry out functions necessary for their life. Thus, heterotrophs — all animals, almost all fungi, as well as most bacteria and protozoa — depend on autotrophs, or primary producers, for the energy and raw materials they need.Autotrophic Nutrition Types of Autotrophic nutrition: (i)Phototrophic (ii) ChemotrophicHeterotrophic Nutrition Types of Heterotrophic nutrition : (i) Holozoic (ii) Saprophytic (iii)Parasitic and (iv) Symboitic Association





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Answer 2

* Autotrophic mode : Organisms use the raw materials present in our environment to synthesize their own food. eg. Green plants

* Heterotrophic mode: In this mode, organisms depend on other organisms (either directly or indirectly) for food. eg: Human beings.

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