Mode of nutrition (autotrophic nutrition, Heterotrophic nutrition), Types of Heterotrophic nutrition- Holozoic nutrition, saprophytic nutrition, parasitic nutrition) for class 10 in simple language for understanding And notes cbsc and mpboard

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Nutrition  

Definition:- 

Nutrition is a process by which an organism obtains nutrients from food and utilises them to obtain energy.

Nutrients:- 

Nutrientsare the substance which provide Energy to an organism for their growth and maintenance .

Examples of Nutrients-Carbohydrates, fats, protein and minerals and vitamins.

Modes of Nutrients:-

It is a method of obtaining food from Surrounding by an organism. There are two modes of Nutrition:-

Autotrophic Nutrition and Heterotrophic Nutrition

(1) Autotrophic Nutrition:-

The type of  nutrition in which organism  Synthesis their own food from inorganic materials like carbon-di-oxide and water  is called Autotrophic Nutrition.
*Chlorophyll is required.

The organism having Autotrophic mode of nutrition see called Autotrophes.

For example: Green plants and some bacteria.

(2) Heterotrophic Nutrition:-

 The type of nutrition in which organism cannot prepare their own food. They depend on autotrophs (directly or indirectly)  for their food.

The organism having heterotrophic mode of  Nutrition are called heterotrophs.

For Example- Animals, fungi.

Heterotrophic nutrition may be  of following types:-

(A) Holozoic nutrition -

In this type of nutrition complex food is taken in  and then broken down into simpler form inside the body.

For example- Herbivores (plant eaters), Carnivores (meat eaters) and omnivorous (both plant and meat eaters), amoeba, cow, dog, cat goat, humans etc.

(B) Saprophytic Nutrition:- 

Organism which feed Organism upon dead decaying matter called Saprotrophs and mode of nutrition is called Saprophytic nutrition.

For example-  fungi, mushrooms, yeast and bacteria etc.

(C) Parasitic nutrition:- 

Parasites having parasitic nutrition are live inside or outside the other organism (host) and obtain their nutrition without killing them.

For example- Plasmodium, ticks , live, leech, tapeworm, plants like -  Cuscuta (amarbel) etc.