Final answer:
Regulation of enzymes in metabolic reactions commonly utilizes feedback inhibition, where products of the reaction inhibit the enzyme allosterically to prevent waste and overproduction.
Step-by-step explanation:
The regulation of enzymes involved in metabolic reactions usually requires feedback inhibition. This process involves the products of a metabolic pathway serving as inhibitors of one or more of the enzymes that helped produce them. These inhibitors often act allosterically, which is a mechanism that allows for efficient and elegant regulation within the cell. Cells utilize the abundance of specific products by slowing down the production during anabolic or catabolic reactions. It's important to note that while enzymes can be influenced by conditions such as temperature and pH, feedback inhibition is specifically characterized by a product of an enzyme reaction inhibiting that enzyme's activity to prevent the overproduction of that product.