Read the following statements w.r.t. resting state of neuron.
(I) The ion channels present on axonal membrane are selectively permeable to different ions.
(II) The axonal membrane is permeable to negatively charged proteins present in the axoplasm.
(III) The axoplasm inside the axon contains low concentration of 
.
(IV) At resting stage, the inner surface of axonal membrane is negatively charged.
Choose the correct option.
Text Solution
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• Ion channels are selective (e.g., 
, 
channels).
• The membrane is impermeable to large negatively charged proteins in the axoplasm.
• Axoplasm has low 
(and high 
) compared to outside.
• At rest, the inner surface is negative (resting membrane potential).
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