Secrete - GCSE Biology Definition

In GCSE Biology, the term 'secrete' refers to the process by which cells or glands in a living organism produce and release substances such as enzymes, hormones, or saliva. This process is essential for many body functions, including digestion and the regulation of internal conditions. For example, salivary glands secrete saliva to help break down food in the mouth, and the pancreas secretes insulin to help control blood sugar levels. Secretion is a vital part of how the body maintains homeostasis and responds to changes in its environment.