Propagation of action potentials HL (2025)
Action potentials can propagate along axons due to the movement of ions across the membranes. This series of activities explores this by looking at a simulation of the movement of ions through voltage-gated channels. Oscilliscope traces are then used to visualise and interpret cellular events. Finally, saltatory conduction is considered. What might cause the change in the voltage seen in the image? How might this...