Question

The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar molecules are unable to go across unless

Answer 1

unless the molecules arent tight together and there IS'NT movement that are highly selective to the barrier.


-G

Answer 2

The cell membrane is a highly selective barrier that controls the movement of substances in and out of the cell. In fact, polar molecules are unable to go across unless

Answer 3

they react with other substances to become nonpolar.