Which of the following statements concerning the permeability of a typical neuron membrane at rest is TRUE?
A. All of the K+ channels in the membrane are open.
B. The permeability to Na+ is much greater than the permeability to K+.
C. The voltage-gated Na+ channels are in the inactivated state.
D. There is equal permeability to Na+ and K+.
E. Most of the voltage-gated Na+ channels are in the closed state.
Answer: E
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