What ion enters a neuron causing depolarization of the cell membrane? a. sodium b. chloride c. potassium d. phosphate
Added by Derek E.
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Step 1: The concentration of sodium ions is higher outside of cells compared to inside of cells by a factor of 10. Show more…
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The first ion to enter the neuron at the beginning of an action potential is ______. a. calcium b. potassium c. sodium d. ATP
During the repolarization phase of an action potential, what ions are being transported through the cell membrane? A) Potassium ions from inside of the cell, to the outside of the cells, through voltage sensitive potassium channels B) Sodium ions from outside of the cell to the inside of the cells, through sodium channels C) Sodium ions from inside of the cell to the outside of the cells, through sodium channels D) Potassium ions from outside of the cell, to the inside of the cells, through voltage sensitive potassium channels
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