Discuss the major steps involved in process of nutrition in human beings. For ( 5 mks)
Discuss the major steps involved in process of nutrition in human beings. For ( 5 mks)
The process of digestion occurs in five distinct steps. These are as follows.
1.Ingestion: The process of taking in food through the buccal cavity is known as ingestion.
2.Digestion: It is the process of breaking down food into simpler substances.
3.Absorption: The process of absorption nutrients which we get from food takes place in the small intestine. Here ,nutrients are absorbed in the blood through the villi, which are finger like projection, present in inner wall of small intestine.
4.Assimilation: The food absorbed by blood is transported to various parts of the body by blood vessels. This process is known as assimilation.
5.Egestion: The process of removing the undigested food material from the body through the anus is known as egestion
The process of digestion occurs in five distinct steps. These are as follows.
1.Ingestion: The process of taking in food through the buccal cavity is known as ingestion.
2.Digestion: It is the process of breaking down food into simpler substances.
3.Absorption: The process of absorption nutrients which we get from food takes place in the small intestine. Here ,nutrients are absorbed in the blood through the villi, which are finger like projection, present in inner wall of small intestine.
4.Assimilation: The food absorbed by blood is transported to various parts of the body by blood vessels. This process is known as assimilation.
5.Egestion: The process of removing the undigested food material from the body through the anus is known as egestion
