Sodium-Potassium Pump Mechanism | Cellular Ion Transport Explained #2268192 (License: Personal Use)

This labeled diagram illustrates the active transport mechanism of the sodium-potassium pump embedded in the phospholipid bilayer of the plasma membrane. ATP binds and is hydrolyzed to ADP and phosphate, triggering conformational changes that export three sodium ions to the extracellular space and import two potassium ions into the cytoplasm. A concentration gradient scale on the right highlights higher extracellular Na⁺ and higher intracellular K⁺ concentrations.

Used in biology textbooks, educational websites, and medical training materials to explain active transport, membrane physiology, and neuronal excitability; matches user intent for learning how cells maintain resting membrane potential.