Question

Briefly describe the types of tonicity?

Answer 1

1. Isotonic Solution: A solution where the solute concentration outside the cell is equal to that inside the cell. There is no net movement of water, and the cell retains its normal size.
2. Hypotonic Solution: A solution where the solute concentration outside the cell is lower (more diluted) than inside the cell. Water moves into the cell via endosmosis, causing it to swell and become turgid.
3. Hypertonic Solution: A solution where the solute concentration outside the cell is higher (more concentrated) than inside the cell. Water moves out of the cell via exosmosis, causing the cytoplasm to shrink (plasmolysis).