Question

what do you understand by term nutrition .explain various mode of nutrition​

Answer 1

the process of taking in food by an organism and its utilisation by the body is called nutrition... ❤

Answer 2

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• WHAT IS NUTRITION...???

√ Nutrition is a process in which organisms obtains its nutrients and utilized them in various activities like respiration, growth repair and replacement.

√ Nutrients are the substances that an organisms obtains from its surroundings.

• MODES OF NUTRITION ARE...

1) Autotrophic Nutrition : Autotrophic Nutrition obtained from inorganic sources.

"Auto" means self and " trophic " means nutrition therefore when organisms synthesizes or prepare its own food by photosynthesis.

Examples : Green plants, Autotrophic bacteria etc.

2) Heterotrophic Nutrition : Heterotrophic Nutrition obtained from organic sources.

"Hetero" means other and " trophic " means nutrition therefore nutrition from different means.

a) Saprophytic Nutrition : Organisms feed on dead decaying plants or animals material.

b) Parasitic Nutrition : Organisms obtain food from the body of another living organisms.

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• ENDOPARASITE : Parasite lives inside the body of organisms.

Examples : tapeworm , roundworm etc.

• EXOPARASITE : Parasite lives on the body of the host or organisms.

Examples : Leech , lice etc.

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c) Holozoic Nutrition : Organisms take in whole food and then digest it into smaller particles with the help of enzymes.

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1. Ingestion

2. Digestion

3. Absorption

4. Assimilation

5. Egestion