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The outer surface of the axon has a positive charge at resting membrane potential. True or false?(a) True(b) FalseThis question was addressed to me in examination.The doubt is from Neuron-2 topic in portion Neural Control and Coordination of Biology – Class 11

Answer»

Right answer is (a) True

Explanation: At resting membrane potential, the CONCENTRATION of SODIUM IONS is high outside the axonal membrane. Due to the sodium-potassium PUMP, the OUTER surface of the axon has a positive charge.



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