Question

When the levels of glucose drop, alpha-cells in the pancreas secrete ____________________

(a) glucose

(b) glucagon

(c) starch

(d) pancreatic fluid

Answer 1

Correct answer is (b) glucagon

Explanation: When the glucose levels drop, alpha cells in the pancreas secrete glucagon in an effort to maintain the glucose levels.  The glucagon acts through G-protein coupled receptor and stimulates the breakdown of glycogen.