Explain the steps in nutrition in humans explain each
Answers
There are 5 steps of nutrition. They are: INGESTION, DIGESTION, ASSIMILATION, ABSORPTION AND EGESTION.
Ingestion: It is the process by which the food is taken into the body of an organism. They have special organs for this purpose.
Digestion: The process of converting solid and complex food into simple ans soluble form is known as digestion.
Absorption: It is the process by which digested nutrients are absorbed from the intestine and transported to different parts of the body the circulatory system. It takes place through finger like projections called villi present in the walls of small intestine.
Assimilation: It is the process of utilising absorbed food materials foe energy, growth and devolopment.
Egestion: It is the process of removing undigested food materials from the body in the form of faeces.
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Answer:
The five steps in nutrition in animals are-
a) Ingestion – The process of intake of food.
b) Digestion – Breaking down of food into smaller and simpler compounds.
c) Absorption – The simpler compounds are absorbed by blood and transported to different parts of the body.
d) Assimilation – Utilization of the absorbed nutrients for energy, growth and
development by body.
e) Egestion – Expelling the indigestible materials from the body with some water in form of faeces.
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