Question

Q. 1
List and briefly describe the five steps of nutrition​

Answer 1

Question:-

List and briefly describe the five steps of nutrition.

Required Answer:

Nutrition can be divided into five steps-

1. ingestion.
2. digestion.
3. absorption.
4. assimilation.
5. egestion.

Ingestion:- The process of taking food into the body is called ingestion, Animals use various ways to ingest food.

Digestion:- The food that animals eat

cannot be used directly to get energy.

It has to be broken down into simpler

substances that can be easily absorbed.

The process of breaking down complex food into simpler substances is called digestion.

Absorption :- The process by which the

digested food moves into the blood and

cells of the body is called absorption.

Assimilation:- The process by which the absorbed food is used by the body to generate energy and carry out its life functions is called assimilation.

Egestion :-The process by which theundigested food and waste is sent out of the body is called egestion.

Answer 2

The process in which food id consumed by the organisms and the nutrients are absorbed by the body and used in the functioning of the body is called nutrition.

The five steps which occur in the process of nutrition in animals are Ingestion, digestion, absorption, assimilation, and 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.