This happens through osmosis, water moving to balance solute concentrations. 🧠 Remember: Solute = a substance that dissolves in a solvent (example: salt) * HYPOtonic fluids = LOW solute compared to blood (HYPO = LOW). → Water moves into the cell, making it swell. * HYPERtonic fluids = HIGH solute compared to blood (HYPER = HIGH). → Water moves out of the cell, making it shrink. * ISOtonic fluids = EQUAL solute to blood (ISO = SAME). → Water moves equally in and out, so cells stay the same. Let