The diagram below shows the five main transport proteins that control the distribution of Na+ and K+ ions across the plasma membrane of an axon Assume that the membrane is at resting potential---the membrane potential of the axon remains constant at about -70 mV
Drag the arrows onto the diagram to show the direction of Na+ (gray arrows) and K+ (red arrows) movement through each transport protein at resting potential If no ions move through a transport protein at resting potential, leave that target blank