Question

Q. 9. What is holozoic nutrition ? Explain
its types on the basis of food of the animals.​

Answer 1

$\colorbox{plum}{Holozoic Nutrition :-}$

➪ What is holozoic nutrition?

Holozoic nutrition can be defined as a method of nutrition which involves the ingestion of some complex organic substances that may be in the solid or the liquid state.

➪ Definition

Holozoic nutrition is the process of nutrition that takes place in organisms which take solid or liquid food inside their body. Amoeba follows holozoic nutrition.

➪ Steps involved

Holozoic nutrition in amoeba takes place in the following steps:

• Ingestion
• Digestion
• Absorption
• Assimilation
• Egestion

➪ Example: Amoeba

The process of nutrition in amoeba is as follows:

• Ingestion: The process the food is taken inside through mouth and broken down by teeth and initial digestion takes place in the mouth by saliva.
• Digestion: The process in which food is digested by using few enzymes and are used by the cells for producing energy.
• Absorption: The process in which cells use the energy from the digested food and helps in building tissues in our body.
• Assimilation: The process in which digested food moves into the cells of the body.
• Egestion: The process in which undigested food is removed out from the body through excretion.

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