Q. Glucagon is secreted by
A) Adrenal medulla
B) β-cells of islets of Langerhans
C) α-cells of islets of Langerhans
D) Adrenal cortex
Explanation
Glucagon is a hormone, secreted by α-cells of islets of Langerhans in the pancreas. It increases the concentration of glucose in the blood by stimulating the metabolic breakdown of glycogen. It thus, antagonizes the effects of insulin.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.