plant, as well as support, strength and filtration. When performingosmosis by taking water up into the cell, the cell wall regulates theamount of water that can enter. As water enters, the internal pressurewithin the plant begins to rise. When the plant has accumulated all thewater it can hold, the pressure inside the cell will be high and therefore,the cell wall will not allow any other water into the plant. Thismechanism keeps the plant cell from bursting. This also works in reverse.The cell wall protects the cell from losing too much water and shrinkingwhen placed in a concentrated solution by regulating the amount ofwater than can leave the cell.Question 2How do osmotic power plants work?SelectedAnswer:Osmotic power planthaveto be builtwherefreshwatermeetssea water.Their system relies onone side of the membrane being saltier than the other,converting the pressure differential into hydraulic pressure.This pressure can be used to drive a turbine that produceselectrical energy.CorrectAnswer:Osmotic power plants work by collecting energy from the act ofosmosis between saltwater and freshwater. A semipermeablemembrane is put between the two water types and they begin theprocess of osmosis, releasing energy as the water moves.Question 3Why don’t red blood cells swell or shrink in blood?SelectedAnswer:Red blood cells do not swell or shrink in blood because theyare Isotonic. The osmotic flow of water into and out of thecell is the same.