Question

_____________ hormone stimulates the contraction of gall bladder for release of bile juice.

• A. Secretin
• B. Cholecystokinin
• C. Gastrin
• D. GIP

Answer 1

The correct option is B Cholecystokinin

Cholecystokinin hormone stimulates the contraction of the gallbladder for the release of bile juice.
$\begin{array}{ccc}\text{Hormone}& \text{Site of secretion}& \text{Effects}\\ \text{Secretin}& \text{Enteroendocrine}& \text{Stimulates secretion of pancreatic juice rich}\\ & \text{cells of the mucosal}& \text{in bicarbonate ions.}\\ & \text{layer of the}& \\ & \text{duodenum}& \\ \text{Cholecystokinin}& \text{CCK cells in the}& \text{Stimulates secretion of pancreatic juice rich}\\ & \text{mucosa of the small}& \text{in enzymes and helps in the ejection of bile}\\ & \text{intestine}& \text{juice from the gallbladder}\\ \text{Gastrin}& \text{G cells of the gastric}& \text{Promotes secretion of gastric juice, increases}\\ & \text{gland}& \text{gastric motility and promotes the growth of}\\ & & \text{gastric mucosa}\\ \text{GIP (Gastric}& \text{It is secreted by the}& \text{It inhibits the secretion of gastric juice.}\\ \text{inhibitory peptide)}& \text{small intestine.}& \end{array}$