NEET Biology question
Read the given paragraph. In the resting state, the axonal membrane is _(i)_ with more _(ii)_ charged ions outside than inside. This unequal distribution of ions is due to the selective permeability of the membrane, which forms an almost impenetrable barrier to _(iii)_ and the action of the _(iv)_, which pumps Na+ out of the neuron for every _(v)_ K+ brought in. Select the option that correctly fills the blanks in the paragraph.
Answer: (D)
Solution
At rest, the axonal membrane is polarised (i), with more positively (ii) charged ions (Na+) outside than inside, the membrane being nearly impermeable to Na+ (iii);
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