" The excess of "Na^(+)" ions in our system "

Excess of Na^(+) ions in our system causes

Excess of Na^(+) ions in our system causes

Excess of Na^(+) ions in human system causes

Excess of Na^((+)) ions in human body causes.

By which mechanism, the salt resistant plants can get rid off excess Na^(+) ions to the outer side, through the roots ?

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 by