THORAX ABDOMEN AND PELVIS

MEDICAL

STOMACH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Where does protein digestion begin?
A
Mouth
B
Stomach
C
Liver
D
Small Intestine
Explanation: 

Detailed explanation-1: -It’s 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.

Detailed explanation-2: -The digestion of protein entails breaking the complex molecule first into peptides, each having a number of amino acids, and second into individual amino acids. The pepsins are enzymes secreted by the stomach in the presence of acid that breaks down proteins (proteolysis).

Detailed explanation-3: -Protein digestion occurs in the stomach and duodenum. Three main enzymes are responsible for protein digestion: pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas.

There is 1 question to complete.