(1) Pancreatic juice
(2) Intestinal juice
(3) Bile juice
(4) Gastric juice
Answer (4) Gastric juice
Sol. The correct answer is option (4) because Rennin is proteolytic enzyme found in gastric juice of infants which helps in the digestion of milk proteins.
Option (1) is incorrect as proteolytic enzymes found in pancreatic juice are trypsin, chymotrypsin, carboxypeptidase etc.
Option (2) is incorrect as proteolytic enzymes found in intestinal juice are dipeptidases.
Option (3) is incorrect as no enzyme is present in bile juice.