Question: Use the I/v curves for leak and INa explain how the treshold of an action potential can be dtermined and the peak height. The situation is that sewater contains twice the sodium and chloride that it does in seawater on planet Eart. If you place the giant axon of squid from Earth into the new slaterir seawater, what effect, if any, would you expect on the resting potentail and action potentials in the axon?