Question

Glucagon is secreted by
(a) β(beta) cells of islets of langerhans
(b) ∝ (alpha) cells of islets of langerhans
(c) β cells of pancreas
(d) adrenal cortex

Answer 1

Answer:

b) ∝ (alpha) cells of islets of langerhans

Alpha cells (more commonly alpha-cells or α-cells) are endocrine cells in the pancreatic islets of the pancreas. They make up to 20% of the human islet cells synthesizing and secreting the peptide hormone glucagon, which elevates the glucose levels in the blood.