Which hormone secreted from the pancreas controls glucose metabolism and lowers the glucose level in the blood?

Which hormone secreted from the pancreas controls glucose metabolism and lowers the glucose level in the blood?

• A. Hormone insulin
• B. Glucagon
• C. Thyroxine
• D. Adrenaline

Answer: (A)

Regulation of blood glucose by insulin is the focus. Insulin, produced by the beta cells of the pancreas, lowers blood glucose by helping cells take in glucose and by promoting its storage as glycogen. After eating, rising blood glucose triggers insulin release; insulin boosts glucose uptake in muscle and adipose tissue and stimulates glycogen synthesis in the liver, while reducing glucose production. The net effect is a drop in blood glucose toward normal levels. The other hormones listed don’t accomplish this same lowering effect: glucagon raises blood glucose by signaling the liver to release glucose, while thyroxine and adrenaline influence overall metabolism or energy availability but do not directly reduce blood glucose in the same way.

Regulation of blood glucose by insulin is the focus. Insulin, produced by the beta cells of the pancreas, lowers blood glucose by helping cells take in glucose and by promoting its storage as glycogen. After eating, rising blood glucose triggers insulin release; insulin boosts glucose uptake in muscle and adipose tissue and stimulates glycogen synthesis in the liver, while reducing glucose production. The net effect is a drop in blood glucose toward normal levels. The other hormones listed don’t accomplish this same lowering effect: glucagon raises blood glucose by signaling the liver to release glucose, while thyroxine and adrenaline influence overall metabolism or energy availability but do not directly reduce blood glucose in the same way.