BI-1640
Osmosis
Biology · Secondary 4 · Medium · Osmosis
A student measures the percentage of plant cells that become plasmolysed in different sucrose solutions. She finds that 0% are plasmolysed in pure water and 100% are plasmolysed in 1.0 mol dm⁻³ sucrose. In which sucrose concentration is the water potential of the solution most likely equal to that of the cell sap?
- 0.0 mol dm⁻³
- 0.3 mol dm⁻³ (50% plasmolysed)
- 0.6 mol dm⁻³ (80% plasmolysed)
- 1.0 mol dm⁻³ (100% plasmolysed)
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