Which of the Following Occurs When Threshold Potential is Reached

Question

Which of the following occurs when threshold potential is reached? A) The activation gates of Na⁺ channels open. B) The inactivation gates of Na⁺ channels open. C) The activation gates of Na⁺ channels close. D) Na⁺/K⁺ active transport pumps are activated.

Accepted Answer

When the threshold potential is reached, the activation gates of sodium (Na+) channels open, allowing Na+ ions to enter the neuron, leading to depolarization.