In this system, we have a cell that's embellished in a semipermeable membrane. Now, this membrane allows the flow of water, but it does not allow any site molecules to pass through. Now, on the outside, we have many more site molecules than on the inside. So let's see what entropy tells us about such a system. Well, entropy dictates that a system will only strive to even out. And that means in this system, the site molecules will want to move inside the cell.