Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 5 - No. 21)
If a cell is placed in an isotonic solution, what will happen to the cell?
Water will move into the cell, causing it to swell.
Water will move out of the cell, causing it to shrink.
Water will move into and out of the cell at equal rates, so the cell will remain the same.
The cell will burst.
Explanation
In an isotonic solution, the concentration of water inside and outside the cell is the same, so water will move into and out of the cell at equal rates, and the cell's shape will not change.
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