Question

Explain the process of digestion of food in mouth,stomach and small intestine in humans

Answer 1

Heya !!
_____________________________

⚫ Digestion in Mouth, Stomach, and small intestine.

⚫ Digestion :-
Digestion process is carried out by different organs : Mouth, Stomach and Small Intestine.

♦ Mouth :- In mouth as we put food, firstly teeth chewed that food into small pieces. Then salivary gland secrets saliva and make food wet. Salivary glands secrets an enzyme called amylase it digest starch of food into maltose.

♦ Stomach :- From mouth undigested food enters stomach through oesophagus. Here it churned for 3 hours. Then the wall of stomach secrets gastric juice : Dil.HCL , Pepsin and mucus. HCL make acidic medium, in which pepsin become active and digest protein into small molecules.

♦ Small Intestine :- It is the main site of complete digestion of Carbohydrates, protein, and fats. It receive secretion of liver and pancreas.
▶ Liver :- It secrets bile, which is greenish yellow liquid stored in gall bladder in alkaline nature containing salts. Bile salts break the fats present in food into small globules.
▶ Pancreas :- Pancreas secrets pancreatic juice which contain enzyme amylase, trypsin and lipase. Amylase digest starch, trypsin digest protein and lipase digest fats.

____________________________

Hope it helps..

Thanks :)

Answer 2

hi mate,

===>>here is information about digestion

digestion begins in the mouth, well before food reaches the stomach.

====>>When we see, smell, taste, or even imagine a tasty meal, our salivary glands in front of the ear, under the tongue, and near the lower jaw begin making saliva (spit).

====>>Once filled with food, the stomach grinds and churns the food to break it down into small particles.

===>>It then pushes the small particles of food into the first part of the small intestine, called the duodenum. The small intestine is where most of the digestion and absorption of our food takes place.

===>>The small intestine is where most chemical digestion takes place. Most of the digestive enzymes in the small intestine are secreted by the pancreas and enter the small intestine via the pancreatic duct.

===>>.. The three major classes of nutrients that undergo digestion are proteins, lipids (fats), and carbohydrates.

===>>Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine.

===>> As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules.

===>>Also It Important That The Digestive Processes. The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation.

===>>The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.

I hope it helps you.