Membrane

potentialMembrane potential is the difference in electrical potential between the inside and outside of a cell membrane. It is typically measured in millivolts (mV). The membrane potential is maintained by the selective permeability of the cell membrane, which allows certain ions to pass through while blocking others. This selective permeability is regulated by ion channels, pumps, and transporters. The membrane potential plays an important role in cell signaling, as it can be used to transmit electrical signals from one cell to another.