Read the following statements.
Statement I: During depolarisation of a nerve fibre, sodium channels open.
Statement II: The outer surface of axonial membrane becomes negatively charged and the inner side becomes positively charged during depolarisation.
In the light of given statements, choose the correct answer from the options given below.

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S I is false and S II is true.

Both S I and S II are true.

S I is true and S II is false.

Both S I and S II are false.

answer is D.

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Detailed Solution

During depolarisation of a nerve fibre, sodium channels open. The outer surface of axonial membrane becomes negatively charged and the inner side becomes positively charged during depolarisation.

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