Write a short note on the absorption of protein in our body.
Answers
Explanation:
Protein AbsorptionIn adults, essentially all protein is absorbed as tripeptides, dipeptides or amino acids and this process occurs in the duodenum or proximal jejunum of the small intestine. The peptides and/or amino acids pass through the interstitial brush border by facilitative diffusion or active transport.
Answer:
The major constituents of the food are carbohydrates, proteins and lipids. They are digested and absorbed in the stomach and intestine. Some of the digested/degraded components of the food stuffs may either be reutilized or may be excreted out. Chewing of food, movements of the stomach and intestine facilitate the grinding of the food materials and bring them in contact with gastric secretions.
Proteolytic enzymes are absent in the salivary secretions, hence there is no digestion of proteins in the mouth. Proteolysis takes place in the gastro-intestinal tract (i.e. stomach and intestine). When the proteins enter the stomach they stimulate the secretion of the hormone called gastrin which in turn stimulates the secretion of HCl by parietal cells of the stomach and pepsinogen from the chief cells.