Question

which are the nutrients that undergo digestion inside the stomach? How? ​

Answer 1

Explanation:

Protein digestion occurs in the stomach and duodenum in which 3 main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.

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Answer 2

The stomach is the part of the gastrointestinal tract. The stomach is a J-shaped organ of the GI tract that digests food.

• The stomach secretes acidic gastric juices and enzymes to digest carbohydrates and protein.
• It generates enzymes that establish chemical reactions and acids known as digestive juices. This mix of enzymes and digestive juices breaks down food so it can pass to the small intestine.
• The stomach mainly digests the protein part of the food. Pepsin is a stomach enzyme that fulfils the digestion of proteins found in food. Gastric chief cells secrete pepsin as an inactive zymogen named pepsinogen.
• Once a protein source enters the stomach, hydrochloric acid and enzymes named proteases break it down into minor chains of amino acids. Amino acids are assembled by peptides, which are halted by proteases. From the stomach, these minor chains of amino acids shift into the small intestine.

Hence, the stomach mainly digests the protein part of the food.