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Concentration of `Na^(+)` ions outside a nerve cell is `~100` times more than inside. The concentration of `K^(+)` ions is more inside the cells. The levels of `Na^(+)` ions and `K^(+)` ions are maintained byA. free diffusion of `Na^(+)` ions and pumping of `K^(+)` ions across the membrane.B. `Na^(+) " and " K^(+)` pumps in the membrane.C. free diffusion of `K^(+)` ions and pumping of `Na^(+)` ions across the membraneD. water channels fomed by lipids in the membrane. |
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Answer» Correct Answer - B Energy derived pumps are present in plasma membrane. |
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