HUMAN NUTRITION

Detailed explanation-1: -An enzyme made in the stomach that breaks down proteins in food during digestion. Stomach acid changes a protein called pepsinogen into pepsin.

Detailed explanation-2: -Glands in the mucous-membrane lining of the stomach make and store pepsinogen. Impulses from the vagus nerve and the hormonal secretions of gastrin and secretin stimulate the release of pepsinogen into the stomach, where it is mixed with hydrochloric acid and rapidly converted to the active enzyme pepsin.

Detailed explanation-3: -Pepsin: It is secreted by gastric chief cells present in the stomach. It helps digest protein in the food. Pepsin requires an acidic medium to exert its action and so the acid secreted serves this function.

Detailed explanation-4: -Pepsin is an endopeptidase enzyme that degrades proteins into peptides. It is formed in the chief cells of the stomach lining and is one of the most important digestive enzymes in humans and many other animals’ digestive systems, where it aids in the digestion of proteins.