Question

Glucagon is secreted by ______ cells of pancreas.

Options

• PP

• alpha

• delta

• beta

Answer 1

Glucagon is secreted by alpha cells of pancreas.

Explanation:

1. Alpha (α) cells (20%) secrete glucagon. It stimulates liver for glycogenolysis to increase blood glucose level.
2. Beta (β) cells (70%) secrete insulin. It stimulates liver and muscles for glycogenesis. This lowers blood glucose level.
3. Delta (δ) cell (5%) secrete somatostatin which inhibits the secretion of glucagon and insulin. It also decreases the gastric secretions, motility and absorption in digestive tract.
4. PP cells or F cells (5%) secrete pancreatic polypeptide (PP). It inhibits the release of pancreatic juice.