Learning task 19-01: Solutions Definition Hypertonic A solution with a greater concentration. Since osmosis causes water molecules to flow out of the cell to balance the concentration of solute on either side of the semipermeable membrane, it is an area with low water concentration Isotonic A solution with the same solute concentration as the semipermeable membrane. It indicated that the water was not only flowing back and forth, but also at an equal velocity. Hypotonic A solution with a lower solute concentration. Because there are less solutes in hypotonic water, it causes the water to flow from a low concentration to a high concentration to balance the concentration of the water. Solute In the osmosis video, will the solution inside the tubing ever be isotonic with the solution outside of the tubing? Explain why or why not. Explain how you can figure out the relative size of molecules in the diffusion video. Diagram

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.