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Diffusion occurs through materials such as water and air but it may also occur t

ID: 92976 • Letter: D

Question

Diffusion occurs through materials such as water and air but it may also occur through structures such as the cell membranes. The size of a particle may slow or prevent its diffusion through a particular membrane. If a membrane allows some items to diffuse through but slows or stops others it is described as a selectively permeable membrane. In the beakers above, the cell membrane is permeable to both water and solute in this example. Use arrows to show which direction the solute and water will move in the systems. Explain your choices below. Beaker A: Beaker B: Beaker C:

Explanation / Answer

Ans.)

Beaker1 - In this beaker, the solution is hypotonic. The movement of water would be inside the cell.
Beaker2 - In this beaker, the solution is isotonic. Hence, the movement of water would be balanced by movement of water inside the cell.
Beaker3 - In this beaker, the solution is hypertonic. Therefore, The movement of water would be outside the cell.