Insulin - GCSE Biology Definition

Insulin is a hormone made by the pancreas, a small organ near your stomach. Its main job is to help control the amount of sugar in your blood. After eating, food is broken down into glucose, a type of sugar your body uses for energy. Insulin helps this glucose move from your blood into your cells, so your body can use it. If the body does not make enough insulin, or if the insulin does not work well, blood sugar levels can get too high, leading to conditions like diabetes. Understanding insulin is important because it plays a crucial role in how our bodies use energy and stay healthy.