How do enzymes function in biochemical reactions?

Enzymes function by lowering the activation energy required for biochemical reactions to occur.

Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur. They do this by binding to the reactant molecules, which brings them closer together and in the correct orientation for the reaction to occur. This reduces the energy required for the reaction to take place, making it more likely to occur.

Enzymes are highly specific and can only catalyse one particular reaction or a group of closely related reactions. This specificity is due to the unique shape of the enzyme's active site, which is complementary to the shape of the reactant molecules. When the reactant molecules bind to the active site, the enzyme undergoes a conformational change that brings the reactants closer together and facilitates the reaction.

Enzymes are also subject to various factors that can affect their activity, such as temperature, pH, and substrate concentration. Changes in these factors can alter the shape of the enzyme's active site, which can either increase or decrease its catalytic activity.

In summary, enzymes function by lowering the activation energy required for biochemical reactions to occur. They do this by binding to the reactant molecules, bringing them closer together and in the correct orientation for the reaction to occur. Enzymes are highly specific and subject to various factors that can affect their activity.