The inner lining of stomach is protected...

The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one

Pepsin

Mucus

Salivary amylase

Bile

Text Solution

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The correct Answer is:

The mucus is secreted in the gastric juice by the glands present in the stomach wall . It helps to protect the wall of stomach from its own secretions of hydrochloric acid . If mucus is not secreted, HCl will cause the erosion of inner lining of stomach leading to ulcer formation.
Pepsin acts on proteins in the stomach . Salivary amylase is present in saliva, it acts on starch in the mouth.
Bile helps in emulsification of fat in small intestine.

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Inner lining of gut and stomach is made of

Cuboidal epithelium

Ciliated epithelium

Simple columnar epithelium

All of above

Mucosal epithelium lining of stomach is protected from concentrated hydrochloric acid by

Mucus and bicarbonates

Peptidases

Lipases

Carbonates and sodium ions.

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