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Presentation transcript:

Do Now: Use this information to answer the questions Where is the concentration of Na+ ions greater? Where is the concentration of K+ ions greater? The green structure represents a sodium and potassium pump protein. In which direction are the two ions being pumped? Against the gradient so this is an example of active transport.

ATP The phosphate labeled high energy bond (the kick) is broken and the phosphate attaches to the pump protein to energize it and move the ions against its concentration gradien.

Sodium-Potassium Pump Maintains Homeostasis Video on How the Sodium-Potassium Pump Works Form of active transport Used to maintain cell homeostasis. Homeostasis means the body is in balance, functioning properly. Needed to regulate and maintain a specific Na+ and K+ concentration in the cell. Both ions are passively moving in and out of cell.