BI-467
Osmosis
Biology · Secondary 3 · Hard · Osmosis
A student places identical potato cylinders into 0.10 mol dm⁻³, 0.20 mol dm⁻³ and 0.30 mol dm⁻³ salt solutions. After 3 hours, only the cylinder in 0.20 mol dm⁻³ shows no change in mass. What does this suggest about the 0.20 mol dm⁻³ solution?
- It has the same water potential as the potato cells.
- It has a much higher water potential than the potato cells.
- It has a much lower water potential than the potato cells.
- It causes active transport of water into the potato cells.
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