Question

dok 2 - 3 questions: 9. what happens when a cell is placed in distilled water? 10. what happens when a cell is placed in salt water? 11. what happens when concentrations are the same on both sides? 12. why do you think it is important for cells to keep the right balance of water?

Explanation:

1. Distilled water is hypotonic. Water moves into the cell by osmosis, causing it to swell or potentially burst (lysis).
2. Salt - water is hypertonic. Water moves out of the cell by osmosis, causing the cell to shrink (crenation).
3. When concentrations are the same on both sides (isotonic), there is no net movement of water across the cell membrane, and the cell maintains its normal shape.
4. Cells need to keep the right balance of water to maintain their shape, function properly, and ensure biochemical reactions occur in the right environment. For example, enzymes and other proteins may be denatured if the cell is too dry or too swollen.

Answer:

1. The cell swells or may burst due to water influx by osmosis.
2. The cell shrinks due to water efflux by osmosis.
3. There is no net movement of water, and the cell maintains its shape.
4. To maintain shape, proper function, and a suitable environment for biochemical reactions.