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Hypo, Hyper, Iso Notes Review: What is Osmosis? = diffusion of WATER molecules from an area of higher concentration to an area of lower concentration. 3 Types of Solutions: • Hypotonic Solution • Isotonic Solution • Hypertonic Solution Hypotonic Solution (HYPO = the cell is going to BLOW) a. Cell increases in size. b. WATER enters the cell c. Solution has MORE water and the cell has LESS water Example: Raisin getting bigger in water Isotonic Solution (In is the Same as Out) a. Cell remains the same size. b. WATER moves in and out of the cell equally. c. Solution and cell have EQUAL amounts of water. Example: Red Blood Cell Hypertonic Solution a. Cell shrinks in size. b. WATER leaves the cell. c. Solution has LESS water and the cell has MORE water. Example: carrot in salt water What type of solution are these cells in? Hypertonic Isotonic Hypotonic