Permeability of the cell, Predict equilibrium potentials E
11. Consider a squid axon bathed in seawater under artificial conditions, and the following on
concentrations: [K]i = 400 mM and [K]o = 10 mM, [Na]in = 50 mM, [Na]o = 460 mM.
Predict equilibrium potentials EK and ENa at a temperature of 13oC. Assuming that the Na permeability of the cell membrane is 1/50 that of the K permeability, predict the resting potential, Em, assuming that Cl is in equilibrium.
13 Adjacent to the neuron is a glial cell, which has no sodium channels in the plasma membrane.
Predict its resting potential, using the ion concentrations provided in Problem 11.
