Why Does Depolarization of the Neuron Plasma Membrane Occur

Question

Why does depolarization of the neuron plasma membrane occur? A) due to the diffusion of K⁺ into the cell B) due to the diffusion of K⁺ out of the cell C) due to the diffusion of Na⁺ out of the cell D) due to the diffusion of Na⁺ into the cell

Accepted Answer

Depolarization of the neuron plasma membrane occurs due to the influx of sodium ions (Na+) into the cell, which reduces the membrane potential and makes the inside of the cell less negative compared to the outside.