Question

Explain the process of digestion of food in small intestine of man

Answer 1

The small intestine is the part of the intestines where 90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals from food.

Digestion involves two distinct parts. The first is mechanical digestion by chewing, grinding, churning and mixing that takes place in the mouth and the stomach. The second part of digestion is the chemical digestion that uses enzymes, bile acids etc. in order to break down food material into a form that can then be absorbed, then assimilated into the tissues of the body. Chemical digestion occurs in the small intestine (and, to a lesser extent, also in some other part of the gastrointestinal tract.

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Answer 2

Heya user..!!

Here is ur answer...!!

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Process of digestion in small intestine​ :

→ In  the first part of the small intestine the secretion of the liver called bile and the pancreatic juices are  received .The bile salts break down the larger globules of fat into smaller globules. This is called emulsification. The bile also make the food alkaline so that the pancreatic enzymes can act. The pancreatic enzymes contains trypsin for digesting proteins and lipase for digesting fats. The walls of the small intestine secrete intestinal juices which finally digests the food as follow :

• PROTEINS ⇒ AMINO ACIDS

• FATS ⇒ FATTY ACID'S AND GLYCEROL.

• CARBOHYDRATES ⇒ GLUCOSE

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