Biochemical interactions refer to the various ways in which biological molecules, such as proteins, enzymes, and nucleic acids, interact with each other to facilitate life processes. These interactions are crucial for functions like metabolism, cell signaling, and immune responses. For example, when a protein binds to a substrate, it can catalyze a chemical reaction, leading to the production of essential molecules. These interactions can be influenced by factors such as temperature, pH, and concentration of reactants. Understanding biochemical interactions is vital for fields like biochemistry, pharmacology, and molecular biology, as they help researchers develop drugs and therapies to treat diseases.