How Cells Talk

Cells constantly receive and respond to signals from their environment and other cells. Signal transduction is the process by which a cell converts one kind of signal or stimulus into another.

Steps in Signal Transduction

• Reception: A signaling molecule binds to a receptor on the cell surface.
• Transduction: The signal is relayed inside the cell, often through a cascade of proteins.
• Response: The cell changes its behavior, such as activating a gene or moving.

This process is essential for growth, immune responses, and adapting to changes.