Low levels of ___ can have dire consequences on the functioning of neurons because of its role in membrane repolarization.
A) sodium ions
B) potassium ions
C) chloride ions
D) hydrogen ions

Question

Quizplus · Accepted Answer

Low levels of potassium ions can have dire consequences on the functioning of neurons because of its role in membrane repolarization. Potassium ions are crucial in the repolarization phase of an action potential, as they move out of the cell and help restore the negative charge inside the cell membrane. A lack of potassium can lead to depolarization of the membrane and alter the normal electrical signaling in the neurons. Sodium ions and chloride ions also play important roles in neuronal signaling, but low levels of these ions do not have as severe consequences on membrane repolarization as low levels of potassium ions. Hydrogen ions are not directly involved in neuronal signaling and therefore do not have an impact on membrane repolarization.

Low Levels of ___ Can Have Dire Consequences on the Functioning