Which of the following processes are responsi | vedclass

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(D) During the resting state of a neuron,the axonal membrane is more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions.When a stimulus is

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(D) During the resting state of a neuron,the axonal membrane is more permeable to $K^+$ ions and nearly impermeable to $Na^+$ ions.When a stimulus is applied to the site on the polarized membrane,the permeability of the membrane to $Na^+$ ions increases rapidly.This influx of $Na^+$ ions from the outside to the inside of the axon occurs due to the concentration gradient (high concentration outside,low inside) and the electrochemical gradient created by the negatively charged proteins inside the axoplasm.Therefore,all the mentioned factors contribute to the transport of $Na^+$ ions during depolarization.

Which of the following processes are responsible for the transport of $Na^+$ from outside to the inner side of the axon membrane during the generation of a nerve impulse?

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