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Question

______________ channel help maintain the resting membrane potential.


A

Sodium potassium ATPase pump

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B

Na+ leakage channels

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C

Voltage gated Calcium channels

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D

Ligand gated sodium channels

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Solution

The correct option is A

Sodium potassium ATPase pump


The Sodium potassium pump and the K+ leakage channels are responsible for establishing and maintaining the resting membrane potential. The K+ leakage channels allow the primary positive ion in the cell to diffuse out along its chemical gradient, and the sodium potassium pump transporting 2 positive ions inside for every 3 positive ions thrown outside also help establish the electric potential of a resting neuron. Neurons do not have Na+ leakage channels and the ligand gated sodium channels play a role in depolarisation of the neuron and voltage gated calcium channels in synaptic transmission.


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