Recordings of a giant squid axon's membrane potential are being examined by neurophysiologists. On the slide below, a selection from their recordings is displayed. The membrane is most permeable to potassium ions at which of the following points?

Question

Recordings of a giant squid axon's membrane potential are being examined by neurophysiologists. On the slide below, a selection from their recordings is displayed.  The membrane is most permeable to potassium ions at which of the following points?

Quizplus · Accepted Answer

Eductional Objective: The action potential, which includes depolarization, repolarization, hyperpolarization, and resting potential, is shown on the graph as potential voltage changes across a cell membrane. Changes in the membrane's permeability to Na+ and K+ ions are what cause the action potential to happen. The following phases cycle through an excitable cell's membrane potential (such as a neuron or muscle).

Recordings of a Giant Squid Axon's Membrane Potential Are Being