What is the resting membrane potential of a typical neuron?

Correct option is A

The resting membrane potential of a typical neuron is approximately –70 millivolts (mV). This negative voltage is maintained by the sodium-potassium pump (Na+/K+ ATPase) and selective membrane permeability to ions. It reflects a polarized state, essential for action potential generation.

Information Booster:
1. The inside of the neuron is negatively charged relative to the outside.
2. The sodium-potassium pump actively moves 3 Na⁺ out and 2 K⁺ into the cell.
3. Resting potential allows neurons to respond to stimuli and generate action potentials.
4. Disruption in resting potential affects nerve transmission and can result in neurological dysfunction.
5. The resting potential is crucial in all excitable cells, including neurons and muscle fibers.
6. Voltage-gated channels help maintain and change membrane potential during signaling.