When a neuron is at its resting state,what is the status of sodium ions?
A) There are no sodium ions present at all.
B) They are not let into the neuron.
C) All the sodium has been completely absorbed.
D) Potassium negates the effect of sodium.

Question

Quizplus · Accepted Answer

When a neuron is at its resting state, sodium ions are not let into the neuron. The cell membrane of the neuron is polarized with a negative charge on the inside and a positive charge on the outside. This polarization is maintained by the sodium-potassium pump, which uses energy to transport sodium ions out of the neuron and potassium ions into the neuron. As a result, there are more sodium ions outside the neuron than inside, and they are not able to freely enter the neuron.

When a Neuron Is at Its Resting State,what Is the Status