put in paragraph form and paraphase: In a hypotonic solution, the concentration of solutes outside the blood cells is lower than inside. Water moves into the cells, causing them to swell and potentially burst (hemolysis). The cells appear bloated and may burst due to osmotic pressure. In an isotonic solution, the concentration of solutes outside the blood cells is the same as inside. There is no net movement of water, and the cells maintain their shape and size. Blood cells in isotonic solutions appear normal because there is no osmotic pressure gradient. In a hypertonic solution, the concentration of solutes outside the blood cells is higher than inside. Water moves out of the cells, causing them to shrink (crenation). The cells appear shriveled and dehydrated due to the loss of water