The membrane of resting nerve cells is more permeable to ____________ ions than ____________ ions.
A)sodium,potassium
B)calcium,potassium
C)potassium,sodium
D)chloride,potassium

Question

Quizplus · Accepted Answer

The resting membrane potential of nerve cells is mainly due to the concentration gradients of potassium ions, which are higher inside the cell than outside. Therefore, the membrane is more permeable to potassium ions, allowing them to move out of the cell, contributing to the negative charge inside. Sodium ions have a lower concentration inside the cell and more outside, and chloride ions are negatively charged, limiting their movement across the membrane. Calcium ions play a role in action potential initiation and synaptic transmission, but they are kept at low levels in the cytoplasm of resting nerve cells.

The Membrane of Resting Nerve Cells Is More Permeable to ____________