BI-607
Osmosis
Biology · Secondary 3 · Hard · Osmosis
A student places identical potato cylinders into three solutions:
• pure water
• 0.20 mol dm⁻³ salt solution
• 0.40 mol dm⁻³ salt solution
After 3 hours, their lengths change by +8%, 0% and −10% respectively.
In which solution is the water potential equal to that of the potato cells?
• pure water
• 0.20 mol dm⁻³ salt solution
• 0.40 mol dm⁻³ salt solution
After 3 hours, their lengths change by +8%, 0% and −10% respectively.
In which solution is the water potential equal to that of the potato cells?
- pure water
- 0.20 mol dm⁻³ salt solution
- 0.40 mol dm⁻³ salt solution
- a solution more concentrated than 0.40 mol dm⁻³
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