Glucose metabolism is the process by which the body breaks down glucose, a simple sugar, to produce energy. This process primarily occurs in the cells of the body, where glucose is converted into ATP (adenosine triphosphate), the energy currency of the cell. The breakdown of glucose involves several steps, including glycolysis, the Krebs cycle, and the electron transport chain. Insulin, a hormone produced by the pancreas, plays a crucial role in glucose metabolism by helping cells absorb glucose from the bloodstream. When blood sugar levels rise after eating, insulin is released to facilitate this process. Proper glucose metabolism is essential for maintaining energy levels and overall health.