Explain the digestion in stomach.
The gastric glands in the stomach secrete:
(i) HCl - It kills the bacteria ingested with food and makes the medium of food acidic so as to facilitate the action of the enzyme pepsin.
(ii) Pepsin - It helps to digest proteins.
(iii) Mucus - It protects the inner lining of the stomach from the action of HCl.
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