MICROANATOMY

Detailed explanation-1: -enterokinase, also called Enteropeptidase, proteolytic enzyme (q.v.), secreted from the duodenal mucosa, that changes the inactive pancreatic secretion trypsinogen into trypsin, one of the enzymes that digest proteins.

Detailed explanation-2: -No, enterokinase is not present in pancreatic juice(secreted by the pancreas consists of digestive enzymes).

Detailed explanation-3: -Enteropeptidase (enterokinase) is an enzyme secreted from intestinal glands (the crypts of Lieberkuhn) following the entry of ingested food passing from the stomach. It converts trypsinogen (a zymogen) into its active form trypsin, resulting in the subsequent activation of pancreatic digestive enzymes.