Active site structure

An active site is a specific region on an enzyme where a chemical reaction occurs. Think of it as a unique pocket or groove on the enzyme’s surface, precisely shaped to fit a particular molecule called a substrate. When the substrate binds to the active site, it forms a temporary enzyme-substrate complex, enabling the enzyme to catalyze (speed up) the reaction efficiently. The detailed shape and chemical properties of the active site ensure selectivity and specificity, meaning each enzyme only works with specific substrates, facilitating biological reactions smoothly and accurately.