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When a cell is placed in pure water then?

1. Wall pressure is increased
2. Turgor pressure is increased
3. water potential of cell is increased
4. All the above

Correct answer: Turgor pressure is increased

Solution

Pure water has a higher water potential than the cell sap, so water moves into the cell by osmosis. This increases the pressure of the cell contents against the cell wall, i.e., turgor pressure.

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