Question

explain all the steps of holozoic nutrition

Answer 1

Explanation:

the steps of holozoic nutrition are

1. Ingestion.
2. Digestion.
3. Absorption.
4. Assimilation.
5. Egestion.

• Ingestion is 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 is the process in which food is digested by using few enzymes and is used by the cells for producing energy.
• Absorption is the process in which cells use the energy from the digested food and helps in building tissues in our body.
• Assimilation is the process in which digested food moves into the cells of the body.
• Egestion is the process in which undigested food is removed out from the body through excretion.

Answer 2

$\textbf{Nutrition }$:

Various aspects of obtaining food, mode of intake of food and its utilisation in the body for growth and development is known as nutrition.

Various steps of nutrition are as follows :

$\textbf{Ingestion}$:

The act of getting and eating food collectively are called ingestion.

$\textbf{Digestion}$:

The breakdown of food into simpler and soluble molecules inside the body is called digestion.

$\textbf{Absorption}$:

The process by which soluble molecules present in the digested food passes into the body fluids like blood is called absorption.

$\textbf{Assimilation}$:

The process in which the absorbed food is used for producing energy and growth is called assimilation.

$\textbf{Egestion}$:

The process by which the undigested food materials are thrown out of the body is called egestion.