1. HYPOTONIC CELL ENVIRONMENT
- The cell swells and may burst (lyse) because water enters the cell.
- The solution has a lower solute concentration than the cell.
- Plant cells become turgid; animal cells may lyse.
2. HYPERTONIC CELL ENVIRONMENT
- The cell shrinks (crenates in animal cells, plasmolyzes in plant cells) because water leaves the cell.
- The solution has a higher solute concentration than the cell.
- Water moves out of the cell to equalize concentrations.
3. ISOTONIC CELL ENVIRONMENT
- The cell maintains its normal shape; no net movement of water.
- The solution has the same solute concentration as the cell.
- Water moves in and out at equal rates, maintaining equilibrium.
Parent Tip: Review the logic above to help your child master the concept of the cell in its environment worksheet answers.