Catabolic Reactions

Catabolic Reactions

Catabolic reactions are metabolic processes that break down complex molecules into simpler ones, releasing energy. These reactions are crucial for maintaining life, as they provide the energy needed for bodily functions. For example, during digestion, carbohydrates are broken down into glucose, which is then used to produce ATP (adenosine triphosphate), the body’s energy currency. Catabolic reactions also occur during fasting or intense exercise when stored fat or muscle is broken down to meet energy demands. They contrast with anabolic reactions, which build molecules. Both are essential for metabolism and health.