Which ions are responsible for the depolarization of the neuron's membrane during the generation of a nerve impulse?
Choose the correct option.

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Sodium ions

Calcium ions

Magnesium ions

Potassium ions

answer is A.

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Detailed Solution

The correct answer is sodium ions.

Sodium ions are responsible for the depolarization of the neuron's membrane during the generation of a nerve impulse. When a nerve impulse is generated, the permeability of the cell membrane to sodium ions changes, allowing them to rush into the cell. This influx of positively charged sodium ions causes the membrane potential to become less negative, leading to depolarization and the creation of an electrical signal that travels down the neuron.

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