What is one of the key actions of insulin?

• A. Promotes weight gain
• B. Increases heart rate
• C. Promotes glucose utilization
• D. Reduces blood pressure

Answer: (C)

One of the key actions of insulin is to promote glucose utilization. Insulin is a hormone produced by the pancreas that plays a crucial role in regulating blood glucose levels. When blood sugar levels rise after eating, insulin is released into the bloodstream. This hormone facilitates the uptake of glucose by cells, particularly muscle and fat cells, allowing them to use glucose for energy or store it for future use.

By promoting glucose utilization, insulin helps maintain blood glucose levels within a normal range, preventing hyperglycemia (high blood sugar). This action is vital for overall metabolic function and energy balance in the body.

In contrast, while insulin can have effects related to weight gain due to its role in promoting energy storage, that isn't its primary action. Similarly, insulin does not directly influence heart rate or blood pressure; those functions are regulated by other hormones and mechanisms within the body.