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Which of the following statements is wrong regarding conduction of nerve impulse? Kerala CEE 2014
(a) In a resting neuron, the axonal membrane is more permeable to \( \mathrm{K}^{+} \) ions and nearly impermeable to \( \mathrm{Na}^{+} \) ions
(b) Fluid outside the axon has a high concentration of \( \mathrm{Na}^{+} \)and low concentration of \( \mathrm{K}^{+} \), in a resting neuron
(c) Ionic gradients are maintained by \( \mathrm{Na}-\mathrm{K} \) pumps across the resting membrane, which transport \( 3 \mathrm{Na}^{+} \) ions outwards for \( 2 \mathrm{~K}^{+} \)ions into the cell
(d) Resting potential is the electrical potential difference across the resting membrane
(e) A neuron is polarised only when the outer surface of the axonal membrane possesses a negative charge and its inner surface is positively charged
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