20.
If a cell is placed in a hypertonic solution, osmosis will take place. In which direction will osmosis take place? Why? How would the size of the cell change? What would happen if the cell were placed in a hypotonic or an isotonic solution? In your answer:
- explain the direction of osmosis and the result when a cell is in a hypertonic solution (1)
- explain the direction of osmosis and the result when a cell is in a hypotonic solution (1)
- explain the direction of osmosis and the result when a cell is in an isotonic solution (1)
If a cell is placed in a hypertonic solution, osmosis will take place. In which direction will osmosis take place? Why? How would the size of the cell change? What would happen if the cell were placed in a hypotonic or an isotonic solution? In your answer:
- explain the direction of osmosis and the result when a cell is in a hypertonic solution (1)
- explain the direction of osmosis and the result when a cell is in a hypotonic solution (1)
- explain the direction of osmosis and the result when a cell is in an isotonic solution (1)
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Net movement of solvent is from the less concentrated (hypotonic) to the more concentrated (hypertonic) solution, which tends to reduce the difference in concentrations
This effect can be countered by increasing the pressure of the hypertonic solution, with respect to the hypotonic.
1.When a plant cell is placed in a hypertonic solution, the water in the cells moves to an area higher in solute concentration and the cell shrinks, and in doing so, becomes flaccid. This means the cell has become plasmolyzed – the cell membrane has completely left the cell wall due to lack of water pressure on it; the opposite of turgid.
2.If the medium is hypotonic — a dilute solution, with a higher water concentration than the cell — the cell will gain water through osmosis.that means the water from outside gets in to the cell through the plasma membrane acting as the semi.permeable membrane
3.If the medium is isotonic — a solution with exactly the same water concentration as the cell — there will be no net movement of water across the cell membrane.no osmosis.
This effect can be countered by increasing the pressure of the hypertonic solution, with respect to the hypotonic.
1.When a plant cell is placed in a hypertonic solution, the water in the cells moves to an area higher in solute concentration and the cell shrinks, and in doing so, becomes flaccid. This means the cell has become plasmolyzed – the cell membrane has completely left the cell wall due to lack of water pressure on it; the opposite of turgid.
2.If the medium is hypotonic — a dilute solution, with a higher water concentration than the cell — the cell will gain water through osmosis.that means the water from outside gets in to the cell through the plasma membrane acting as the semi.permeable membrane
3.If the medium is isotonic — a solution with exactly the same water concentration as the cell — there will be no net movement of water across the cell membrane.no osmosis.
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Hypertonic solution- water would move out of the cell resulting in cell shrinkage.
Hypotonic solution- water would move into the cell resulting in cell swelling and eventually can burst open.
Isotonic- movement of water is balanced. Cell is unchanged.
Hypotonic solution- water would move into the cell resulting in cell swelling and eventually can burst open.
Isotonic- movement of water is balanced. Cell is unchanged.
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1.) it goes out
2.) goes nowhere
3.) goes everywhere
2.) goes nowhere
3.) goes everywhere