Question

Define Nutrition and it types?

Answer 1

Intake of food and utilisation of food for meeting various requirements of human beings is called nutrition.
These are 2 types:
a. Autotrophic:-the type of nutrition in which an organism make it's own food with the process of photosynthesis.
b.Hetrotropic:-the type of nutrition in which organism depend on other source.
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Answer 2

The process of taking in a source of energy (food) from outside the body of an organism to inside is known as nutrition.


Types of nutrition:



1. Holozoic mode of nutrition is the process in which an organism takes in whole food. The food ingested undergoes digestion, absorption and assimilation. e.g. small organisms like amoeba large organisms like human beings.

2. Parasitic mode of nutrition is the process in which organism derives its nourishment from host organisms either in liquid form or nutrient form. e.g. Taenia solium is the tape worm living in human intestine.

3. Saprophytic mode of nutrition is the process in which organism derives its nourishment from dead and decaying matter. e.g. Fungi are heterotrophs that acquire their nutrients from dead and decaying matter by absorption.



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