Question

What are gastrin secreting and enterokinase what are their function?

Answer 1

Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility. It is released by G cells in the pyloric antrum of the stomach, duodenum, and the pancreas. ... Its release is stimulated by peptides in the lumen of the stomach..
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. ... Enterokinase can also change inactive procarboxypeptidase into the active enzyme carboxypeptidase.
functions---
enterokinase's function is in the defn. and Microglia-these cells mediate immune responses in the central nervous system by acting as macrophages, clearing cellular debris and dead neurons from nervous tissue through the process of phagocytosis .
Hope it helps.

Answer 2

Answer:

Gastrin:

Gastrin is a hormone secreted by G cells in the lining of small intestine and stomach. When food enters into the body, it stimulates the production of gastric juice by the stomach. It kills bacteria and other pathogens that enter the body through food.

Enterokinase:

It is an enzyme produced by the duodenal mucosa. It changes the inactive trypsinogen into active trypsin; an enzyme that helps to digest protein.