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Sagot :
The (a) resting membrane potential is a result of different concentrations of Na+ and K+ ions inside and outside the cell. A nerve impulse causes Na+ to enter the cell, resulting in (b) depolarization. At the peak action potential, K+ channels open and the cell becomes (c) hyperpolarized.
Neurons are the functional unit of the nervous system, which relays the information between the brain and different parts of the body. The action potential and resting potential are the mechanisms of the neuron to transmit the message.
The correct answer is:
Option B. Active transport of sodium and potassium ions.
The active transport of ions is defined as the transport against the concentration gradient, in which a molecule of energy is spent.
The resting potential of the neuron is defined as the difference in the voltage across the membrane of the cell. The resting potential in neurons is developed by the sodium-potassium pump.
The active transport of sodium and potassium is defined as the transport of 2 potassium ions inside of the cell and pumping of 3 sodium ions outside the cell at cost of 1 ATP molecule.
Thus, option B is correct.
To know more about the sodium-potassium pump, refer to the following link:
https://brainly.com/question/25288432
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