This Biology video tutorial explains how the sodium potassium pump works inside the cell membrane. This protein based pump is an example of active transport which requires the use of ATP energy to power the movement of particles up against the concentration gradient - that is to move the particles from a region of low concentration to a region of high concentration. The sodium potassium pump transports 3 Na+ ions out of the cell and takes in 2 K+ ions into the cell per cycle.

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