The primary role of enzymes in the body is to act as biological catalysts that accelerate chemical reactions. Enzymes are essential for various metabolic processes, including digestion, where they help break down food into nutrients, and cellular functions, enabling the conversion of substances into energy. Each enzyme is specific to a particular reaction or type of reaction, which is crucial for maintaining the body's homeostasis. Without enzymes, many biochemical reactions would occur too slowly to sustain life. Overall, enzymes facilitate critical functions in growth, repair, and overall bodily health.