electrical charges of _ sign are separated across plasma membrane- these charges have the potential to do work, called _
opposite, electrical potential
Electrical charges of opposite sign are separated across the plasma membrane in cells. These charges have the potential to do work, called electrochemical potential. The plasma membrane of a cell is a selectively permeable barrier that separates the cell from its environment. It creates a separation of charge, or electrochemical gradient, which stores energy that can be used to drive cellular processes. This gradient is created by the unequal distribution of ions across the membrane and the selective permeability of the membrane to different ions. The electrochemical gradient is critical for a variety of cellular processes such as the transport of nutrients and waste products across the membrane, the generation and propagation of nerve impulses, and the production of ATP, the energy currency of the cell.
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