What is the role of insulin in carbohydrate metabolism?

Insulin plays a crucial role in carbohydrate metabolism by facilitating the uptake and utilization of glucose by cells for energy. When glucose enters the bloodstream after a meal, insulin is released from the pancreas. This hormone binds to insulin receptors on the surface of cells, especially in muscle and adipose (fat) tissues, promoting the transport of glucose into these cells. Once inside, glucose can be used immediately for energy or stored as glycogen for later use. This process is essential for maintaining normal blood glucose levels and providing a steady source of energy for the body's functions.