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Which of the following statements about osmosis is false?
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14. Solutions
Osmosis
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Which of the following best explains why a hypertonic solution causes a cell to shrink?
A
Solutes move out of the cell, decreasing external pressure.
B
Water moves out of the cell to balance solute concentrations.
C
Water moves into the cell, causing it to swell.
D
Solutes move into the cell, increasing internal pressure.
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Understand the concept of osmosis: Osmosis is the movement of water across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.
Define a hypertonic solution: A hypertonic solution has a higher concentration of solutes compared to the inside of the cell.
Analyze the effect of a hypertonic solution on a cell: When a cell is placed in a hypertonic solution, the concentration of solutes outside the cell is higher than inside, causing water to move out of the cell.
Explain the movement of water: Water moves out of the cell to balance the solute concentrations on both sides of the cell membrane, leading to a decrease in the cell's volume.
Conclude the effect on the cell: As water exits the cell, the cell shrinks due to the loss of water, which is the reason why a hypertonic solution causes a cell to shrink.
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