Insulin
A) promotes the insertion of additional glucose transporters in the plasma membranes of insulin-dependent cells
B) stimulates glycogenesis and inhibits glycogenolysis
C) secretion is increased in response to a fall in blood glucose concentration
D) promotes the insertion of additional glucose transporters in the plasma membranes of insulin-dependent cells and stimulates glycogenesis and inhibits glycogenolysis
E) all of these

Question

Quizplus · Accepted Answer

Insulin promotes the insertion of additional glucose transporters in the plasma membranes of insulin-dependent cells, which increases glucose uptake. It also stimulates glycogen synthesis (glycogenesis) and inhibits glycogen breakdown (glycogenolysis), all of which work to lower blood glucose levels. Insulin secretion is typically increased in response to a fall in blood glucose concentration, helping to maintain glucose homeostasis.