NEET BIOLOGY

Detailed explanation-1: -Digestion of proteins starts in stomach by the action of gastric juice produced by the walls of the stomach. Digestion of protein also takes place in duodenum and ileum by the action of pancreatic and intestinal juice .

Detailed explanation-2: -The trypsins (proteolytic enzymes secreted by the pancreas) are much more powerful than pepsins, so the greater part of protein digestion occurs in the duodenum and upper jejunum. Therefore, even after total removal of the stomach, protein digestion usually is not impaired.

Detailed explanation-3: -Protein is a vital nutrient for almost every part of your body. It’s digested in your mouth, stomach, and small intestine before it’s released into your bloodstream as individual amino acids.

Detailed explanation-4: -Proteins are digested in the stomach and duodenum of the small intestine. The main enzymes that catalyze protein digestion are pepsin secreted in the stomach and trypsin, chymotrypsin, and carboxypeptidase secreted from the pancreas.