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Question
Which of the following statements is wrong regarding conduction of nerve impulse?
Options
In a resting neuron, the axonal membrane is more permeable to K+ ions and nearly impermeable to Na+ ions.
Fluid outside the axon has a high concentration of Na+ ions and low concentration of K+, in a resting neuron.
Ionic gradient s are maintained by Na+ K+ pumps across the resting membrane, which transport 3Na ions outwards for 2K+ into the cell.
A neuron is polarized only when the outer surface of the axonal membrane possess a negative a charge and its inner surface is positively charged.
Solution
A neuron is polarized only when the outer surface of the axonal membrane possess a negative a charge and its inner surface is positively charged.
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