What is the main function of the sodium-potassium pump in the neuron?

What is the main function of the sodium-potassium pump in the neuron?
  1. To transport potassium ions into the axon.
  2. To transport sodium ions into the axon.
  3. To transport sodium ions outwards and potassium ions into the cell.
  4. To transport both sodium and potassium ions into the cell.

Solution

The sodium-potassium pump transports 3 Na⁺ ions outwards for 2 K⁺ ions into the cell.

Asked in: NCERT

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