The ionic gradients across the resting membrane are maintained by…

MCQ

The ionic gradients across the resting membrane are maintained by the

A
Ion channels
✓
Sodium-potassium pumps
C
Electrical synapses
D
Chemical synapses

✓

Answer

Correct option: B.

Sodium-potassium pumps

b
The ionic gradients across the resting membrane is due to opening of $K^+$ leaky channels but is maintained because of $Na^+ \;K^+$ pump which continuously pump $3Na^+$ ions outwards in exchange of $2K^+$ inwards at the expense of energy.

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