NEET Zoology Nerve Impulse MCQ Question
How many statements are correct for resting state of axon?
(i) The axoplasm inside the axon contains high concentration of K⁺ and negatively charged proteins and low concentration of Na⁺.
(ii) In contrast, the fluid outside the axon contains a low concentration of K⁺, a high concentration of Na⁺ and thus form a concentration gradient.
(iii) The outer surface of the axonal membrane possesses a positive charge while its inner surface becomes negatively charged.
(iv) The electrical potential difference across the resting plasma membrane is called as the resting potential.
(v) Resting stage is depolarised state.
(vi) Resting potential is positive potential.
One
Two
Four
All of these
Correct Answer
Detailed Explanation
Statements (i), (ii), (iii), and (iv) are correct as they describe the resting state of an axon. Statements (v) and (vi) are incorrect because the resting stage is polarized, not depolarized, and the resting potential is negative.
Found an issue with this question?