NEET BIOLOGY

Detailed explanation-1: -Endopeptidases break peptide bonds within the primary structure into smaller fragments. Exopeptidases cleave amino acids off the terminal end of the protein molecule.

Detailed explanation-2: -Endopeptidase or endoproteinase are proteolytic peptidases that break peptide bonds of nonterminal amino acids (i.e. within the molecule), in contrast to exopeptidases, which break peptide bonds from end-pieces of terminal amino acids.

Detailed explanation-3: -Proteases (peptidases) are enzymes that hydrolyze peptide bonds in proteins. Exopeptidases cleave a terminal amino acid residue at the end of a polypeptide; endopeptidases cleave internal peptide bonds.

Detailed explanation-4: -Exopeptidases acting at the carboxyl end are called carboxypeptidases, which release a single amino acid or a dipeptide at the C-terminal ends of the polypeptide chain.

Detailed explanation-5: -Carboxypeptidases (CP) are zinc-containing exopeptidases that remove single amino acids from the carboxyl end of oligopeptides, many of which resulted from digestion of dietary proteins by pepsin, trypsin and chymotrypsin.