Question

low blood glucose stimulates which of the following organs to release glucagon into the bloodstream?
○ a. pancreas
○ b. liver
○ c. gallbladder
○ d. kidneys

Explanation:

The pancreas is responsible for releasing glucagon. Glucagon is a hormone that raises blood glucose levels. When blood glucose is low, the pancreas (specifically the alpha cells in the pancreatic islets) secretes glucagon. Glucagon acts on the liver to promote glycogenolysis (breakdown of glycogen to glucose) and gluconeogenesis (synthesis of glucose from non - carbohydrate sources). The liver is the target organ of glucagon, not the secreting organ. The gallbladder stores bile (related to fat digestion) and the kidneys are mainly involved in filtration and excretion (not directly in glucagon secretion).

Answer:

A. Pancreas