active site model

The active site model describes how enzymes, which are biological catalysts, work by providing a specific region called the active site. This active site has a shape that matches a particular molecule (substrate). When the substrate binds to the active site, the enzyme facilitates a chemical reaction by lowering the energy needed. Think of the enzyme as a lock and the substrate as a key; only the right key fits the lock’s shape, ensuring the enzyme acts on specific molecules efficiently. This specialized fit is essential for the enzyme's function and allows biological processes to occur smoothly.