During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has the following electrical change

First negative, then positive and again back to negative

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First positive, then negative and again back to positive

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First ngative, then positive and continue to be positive

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First positive, then negative and continue to be negative

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Solution

The correct option is A
First negative, then positive and again back to negative

The transmission of a nerve impulse along a neuron from one end to the other occurs as a result of electrical changes across the membrane of the neuron. The membrane of an unstimulated neuron is polarized—that is, there is a difference in electrical charge between the outside and inside of the membrane.

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