Question

explain the process of digestion of food in mouth, stomach and small intestine in human body

Answer 1

Digestion of food occurs in following ways in:
(i) Mouth (Buccal cavity) The mouth contains teeth, which crushes the food into small particles. Salivary glands present in the mouth secretes saliva which moistens the food. It also contains enzyme salivary amylase, that acts as


(ii) Stomach Gastric glands are present in the wall of the stomach which releases the following secretions:
(a) Hydrochloric acid To make the medium acidic for the action of enzyme pepsin.
(b) Mucus To protect the inner lining of the stomach from the action of acid.
© Pepsin A protein digesting enzyme.



(iii) Small intestine It is the site of complete digestion of carbohydrates, proteins and fats.
It receives secretions from liver and pancreas.

hope it's may help u

Answer 2

digestion of food in:-
1. mouth→ in mouth, saliva is present which have amylase enzyme which digest starch into sugar.
2. stomach→ it have pepsin which digest protein into peptones.
3. small intestine→ it digests protein into amino acid, fat into fatty acid and glycerol.

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