Trypsin acts on which amino acid-

Ans. is 'b' i.e., Lysine * Serine protease catalyze hydrolysis of peptide bonds which are connected to specific amino acid residues in substrate protein:-# Chymotrypsin hydrolyses peptide bonds which are connected with carbonyl group of tryptophan, tyrosine and phenylalanine. To some extent, it can attack peptide bonds connected with methionine, histidine, leucine and asparagine residues.# Trypsine catalyses hydrolysis of lysine and arginine esters. It cannot hydrolyse any peptide bond with proline residue.