Answer:why is it important that the cell membrane is semi permeable? ... The solution around the cell has a lower concentration of solutes and a higher concentration of water than the inside of the cell. The cell gains water and swells. Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. This is important for the cell to maintain its internal order irrespective of the changes to the environment. ... Movement across a selectively permeable membrane can occur actively or passively.
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