The application of principles from chemistry and biology is known as biochemistry. This interdisciplinary field studies the chemical processes and substances that occur within living organisms, focusing on the molecular mechanisms underpinning life. Biochemists examine various molecules, including proteins, lipids, nucleic acids, and carbohydrates, to understand their roles in metabolism, cell signaling, and genetic regulation. This knowledge is crucial for advancements in medicine, agriculture, and biotechnology, as it allows scientists to manipulate biological processes for beneficial outcomes.