"Cell Signaling" (textbook)

Cell signaling refers to the complex communication processes that occur between cells to coordinate their activities. Cells send and receive signals through molecules like hormones, neurotransmitters, or proteins, which bind to specific receptors on other cells. This interaction triggers a series of reactions inside the receiving cell, leading to changes in behavior, growth, or function. Essentially, it allows cells to communicate with each other, respond to their environment, and maintain the proper functioning of an organism, much like a team of dancers following a choreographed routine.