Question

What happens when a resting neuron's membrane depolarizes? A. There is a net diffusion of Na⁺ out of the cell. B. The equilibrium potential for K⁺(EK⁺ becomes more positive. C. The neuron's membrane voltage becomes more positive. D. The cell's inside is more negative than the outside.

Answer 1

The correct option is (C) The neuron’s membrane voltage becomes more positive.

The resting neuron has a voltage across its membrane which is called the resting membrane potential. There is a concentration gradient of ions across the membrane when the neuron is in the resting state.

Inside the membrane the concentration of  K⁺ and organic anions are more. Outside the membrane the concentration of Na⁺ is more. The membrane is much more permeable to K⁺  than Na⁺ .

The cell’s inside is more negative than the outside when the membrane is hyperpolarized. In neurons the resting membrane potential is close to the equilibrium potential for K⁺.

Learn more about resting membrane potential here: brainly.com/question/15459255

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