Which of the following situations occurs in electrically excitable cells?
A)When Na+ ion channels open,K+ ion channels close.
B)The sodium-potassium exchange pump moves sodium into the cell.
C)Depolarization causes voltage-gated sodium ion channels to open.
D)Ligand-gated sodium ion channels are opened by high extracellular calcium levels.
E)Proteins tend to diffuse out of the cell.

Question

Quizplus · Accepted Answer

In electrically excitable cells, depolarization causes voltage-gated sodium ion channels to open. This allows an influx of sodium ions and triggers an action potential.

Which of the Following Situations Occurs in Electrically Excitable Cells