The digestion in the stomach is taken care of by the gastric glands present in the wall of the stomach. Which of the following are released by these glands?
(A) Trypsin enzyme
(B) Pepsin enzyme
(C) Hydrochloric acid
(D) Mucus
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (B), (C) and (D) only
The gastric glands in the stomach wall release gastric juice, which contains hydrochloric acid, the protein-digesting enzyme pepsin, and mucus.
(A) Trypsin enzyme Incorrect. Trypsin is secreted by the pancreas in pancreatic juice and acts on proteins in the small intestine, not in the stomach.
(B) Pepsin enzyme Correct. Pepsin, released by the gastric glands, begins the digestion of proteins in the stomach.
(C) Hydrochloric acid Correct. It makes the stomach acidic, which pepsin needs in order to act, and it kills germs that come in with the food.
(D) Mucus Correct. Mucus protects the inner lining of the stomach from being damaged by the acid.