6. During the transmission of a nerve impulse, the neuron membrane undergoes as rapid h and then a slow recovery to its resting potential (panel a). +20 – Action potential 20 10 F Time (ms) Time (ms) 6a. Which ion channel is responsible for membrane depolarization? In panel b draw a graph of membrane permeability of that ion 2.5 pts 6b. Which ion channel is responsible for membrane repolarization? In panel b. draw a sroph of membrane permeability of is responsible for the re-setting of the gradients of the two ions? What is the energy source of this 6c. Which protein protein? 5 pts