Question

describe how digestion of protein food takes place inside human alimentary canal​

Answer 1

Answer:

From the Stomach to the Small Intestine

The two major pancreatic enzymes that digest proteins are chymotrypsin and trypsin. The cells that line the small intestine release additional enzymes that finally break apart the smaller protein fragments into the individual amino acids.

Answer 2

Answer:

Hi!

The digestion of protein happens by the action of a set of enzymes that are located in our stomach and small intestine. The entire mechanism is as follows:

1. When we eat a protein-rich food, like any other food, it will also first get chewed and mixed with saliva. Please do note that saliva does not have any enzymes to digest proteins.
2. After proper chewing, it is taken into the oesophagus (food pipe) and further travels down by peristaltic movement.
3. Then it reaches the stomach, the J- shaped muscular bag-like structure where the first step of protein digestion takes place. Here, the gastric secretion includes a protein digesting enzyme called pepsin which converts the proteins to peptones and proteoses (which are peptides)
4. These partially hydrolysed proteins, further moves into the next part, the small intestine, the highly coiled part of our alimentary canal, where the second step of protein digestion takes place. In the small intestine, these are converted to dipeptides by the action of the proteolytic enzymes of the pancreatic juice(released into the duodenal part of small intestine), like trypsin,chymotrypsin and procarboxypeptidase.
5. After that,the last step also takes place in the small intestine, where the enzyme dipeptidase which is present in the intestinal juice(Succus entericus) acts on the end products of the above reaction to form simple absorbable form, i.e., amino acids.
6. This gets absorbed into blood through the intestinal villi and is further utilized for various life activities.

I hope that helped! :)

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