Question

Which cells release insulin when glucose levels elevate in the body?

(a) zeta cells

(b) alpha cells

(c) gamma cells

(d) beta cells

The question was posed to me in examination.

My doubt is from Cell Signaling and Signal Transduction topic in section Cell Signaling and Signal Transduction of Cell Biology

Answer 1

Right option is (d) beta cells

For explanation I would say: The beta cells in pancreas secrete insulin when the blood glucose levels elevate while the alpha cells in the pancreas secrete glucagon when the blood glucose levels drop. Insulin acts as an extracellular messenger molecule.