Which hormone is primarily responsible for lowering blood glucose levels?

Which hormone is primarily responsible for lowering blood glucose levels?

• A. Glucagon
• B. Insulin
• C. Cortisol
• D. Thyroxine

Answer: (B)

Insulin is the hormone primarily responsible for lowering blood glucose levels. It is produced by the beta cells of the pancreas and plays a crucial role in glucose metabolism. When blood glucose levels rise after eating, insulin is released into the bloodstream. Its primary actions include facilitating the uptake of glucose by cells, especially muscle and adipose tissue, and promoting the storage of glucose in the liver in the form of glycogen. Additionally, insulin inhibits gluconeogenesis, the process through which the liver produces glucose from non-carbohydrate sources. Understanding the role of insulin is essential in clinical chemistry, as its deficiency or resistance leads to conditions such as diabetes mellitus, characterized by elevated blood glucose levels. Monitoring insulin levels is vital in diagnosing and managing such metabolic disorders. The other hormones mentioned, like glucagon, cortisol, and thyroxine, have different roles in glucose metabolism and energy regulation, primarily focusing on increasing blood glucose levels or metabolic rate rather than lowering them.

Insulin is the hormone primarily responsible for lowering blood glucose levels. It is produced by the beta cells of the pancreas and plays a crucial role in glucose metabolism. When blood glucose levels rise after eating, insulin is released into the bloodstream. Its primary actions include facilitating the uptake of glucose by cells, especially muscle and adipose tissue, and promoting the storage of glucose in the liver in the form of glycogen. Additionally, insulin inhibits gluconeogenesis, the process through which the liver produces glucose from non-carbohydrate sources.

Understanding the role of insulin is essential in clinical chemistry, as its deficiency or resistance leads to conditions such as diabetes mellitus, characterized by elevated blood glucose levels. Monitoring insulin levels is vital in diagnosing and managing such metabolic disorders. The other hormones mentioned, like glucagon, cortisol, and thyroxine, have different roles in glucose metabolism and energy regulation, primarily focusing on increasing blood glucose levels or metabolic rate rather than lowering them.