Quilet If the fluid inside of a cell has a solute concentration of 5%, what would happen if the cell was placed into a solution with a solute concentration of 10%? Water molecules would enter the cell by osmosis. Water molecules would cross the membrane in both directions, but there would be no net movement of water molecules. Water molecules would leave the cell by osmosis. Solute molecules would leave the cell by osmosis. There would be no movement of water molecules in either direction.