If a cell is placed in an isotonic medium, there will be no net movement of water.
Often movies or stories tell about a person ship-wrecked on an island or stranded on a life raft in the ocean without any access to fresh water. Explain why drinking the ocean water isn't a good idea.
If you were sick and in the hospital, especially with something like the flu where you might become dehydrated, you may receive an IV of saline solution to return your body to homeostasis. What is the concentration of the IV saline (salt) solution?
A 5% urea solution is hypotonic to a 10% urea solution.
A red blood cell placed in a hypertonic medium will