Question

Explain the process of digestion of food mouth stomach or small intestine in 5 marks

Answer 1

the answer of your question is very simple.
The process of digestion begins in the mouth where the tongue teeth and saliva help to break down and soften the food for easy and better intake of food. The food is taken in and goes to the stomach by a long muscular tube that is the oesophagus. In the stomach, the hydrochloric acids, enzymes and other gastric juices help to churn the food. this churned food is send to the small intestine after staying in the stomach for about 2-3 hours. At the initial point of the small intestine the liver and pancreas secrete their digestive juices i.e the bile and pancreatic juices respectively. this breaks down the tough chemical and nutrients present in the food. In the small intestine the nutrients are absorbed and the digestion is completed in the small intestine only. Small intestine has villi that increase the inside surface and help in better digestion. the undigested semi solid food is sent to the large intestine. here the excessive water is absorbed and sent to rectum. from there the waste is removed through anus.

hope this answer helps. :)
and sorry if the answer was too long

Answer 2

Here are answers in points:-
1. Food enters through our mouth and from oesophagus it enters in stomach.
2. In stomach, HCl, mucus and pepsine enzymes help it in some digestion. HCl kills bacteria and activate pepsin, mucus protect inner lining of stomach from HCl and pepsin helps in digestion of some components.
3. Then secretion of gall bladder i.e. Bile juice enters and emulsifies it.
4. Then it goes to pancreas and enzymes amylase, lipase and trypsin acts on it.
5. Then digestion of some substances also done in small intestine.
5. Water is absorbed in large intestine.
6. Then though rectum and then anus, the waste substances passes our from our body.


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