Cellular processes are the various activities that occur within a cell to maintain life. These processes include metabolism, where cells convert nutrients into energy, and cell division, which allows cells to reproduce and grow. Each process is essential for the cell's survival and function, ensuring that it can respond to its environment and carry out necessary tasks. Another important cellular process is cell signaling, where cells communicate with each other to coordinate actions. This communication helps regulate functions like immune responses and hormone release. Together, these processes enable cells to work harmoniously, supporting the overall health of an organism.