NEET BIOLOGY

Detailed explanation-1: -Pepsin operates on complex food proteins during digestion, breaking them down into peptides and amino acids that are easily absorbed by the gut epithelium. Although trypsin and pepsin are both proteolytic enzymes secreted by the digestive system to digest proteins, they are not the same.

Detailed explanation-2: -Trypsin is considered an endopeptidase, i.e., the cleavage occurs within the polypeptide chain rather than at the terminal amino acids located at the ends of polypeptides.

Detailed explanation-3: -Pepsin is an endopeptidase that preferentially hydrolyzes peptide linkages where one of the amino acids is aromatic and accounts for approximately 20% of the protein digestion in the GI tract. Pepsins have optimal function at a pH of 1.5 to 2.0 and become inactive at higher pH.

Detailed explanation-4: -Trypsin is a serine protease found in the digestive system of many vertebrates, where it hydrolyzes proteins at the carboxyl side of the amino acids lysine or arginine.

Detailed explanation-5: -Trypsin and pepsin are both proteins. Specifically, they are both enzymes. Enzyme catalyze biological reactions which means they make the reactions go faster. Trypsin and pepsin are both protease enzymes.