Which enzyme released by the gastric glands helps digest proteins in the stomach?
Pepsin
The gastric glands in the stomach lining secrete gastric juice, which contains hydrochloric acid and the enzyme pepsinogen.
Hydrochloric acid converts inactive pepsinogen into active pepsin.
Pepsin breaks down proteins present in food into smaller peptides in the acidic environment of the stomach.
Maltase, lipase and amylase act on carbohydrates and fats at other stages of digestion, not primarily in the stomach on proteins.
Hence, pepsin is the gastric enzyme that digests proteins in the stomach.
Which part of the human eye controls the amount of light entering the eye?
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Which acid does our stomach produce and what is its pH?
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Match 'Column A' with 'Column B' in context of the muscular layers in blood vessels.
| Column A | Column B |
| (a) Thick tunica media | (i) Vein |
| (b) Smallest vessel diameter | (ii) Artery |
| (c) Large lumen | (iii) Capillary |
| (d) Endothelium | (iv) All blood vessels |
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Which one of the changes observed during adolescence is not associated with boys?