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QUESTION
Q397) Which enzyme initiates protein digestion? [ MPPMT 1997 ]

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Pepsin is an enzyme that breaks down proteins into smaller peptides.
Trypsin. An activated serine amino acid in trypsin cleaves protein chains.
Aminopeptidases are enzymes that catalyze the cleavage of amino acids from the amino terminus (N-terminus) of proteins or peptides
Carboxypeptidase is a protease enzyme that hydrolyzes (cleaves) a peptide bond at the carboxy-terminal (C-terminal) end of a protein or peptide.
Answer : (a)