Choose the correct statement from the list below. a. Mechanical digestion of proteins is more important than chemical digestion. b. Proteins that are consumed in the diet are absorbed as individual amino acids following digestion. c. Protein digestion begins in the small intestine with the activation of trypsinogen to trypsin d. The stomach has a high pH which allows for the activation of digestive enzymes.

The correct answer is option d.

Explanation:

The digestion of protein starts in the mouth when food is chewed. The saliva present in the mouth comprises two enzymes, that is, lipase and amylase, which dissociate fats and carbohydrates present in the food. After that, the food moves into the stomach, where protein present in the food gets dissociated into smaller amino acid chains by the activity of hydrochloric acid and enzyme proteases. The peptides that join amino acids together are further dissociated by proteases.  

After digestion in the stomach, the left amino acid chains go into the small intestine, where the enzymes released by the pancreas and other enzymes like chymotrypsin, trypsin, and carboxypeptidase acts on the amino acid chains and breaks the chains of amino acids into single amino acids. Thus, the proteins present in the diet gets absorbed within the body in the form of single amino acids post digestion.  

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