BI-508
Osmosis
Biology · Secondary 3 · Hard · Osmosis
In an experiment, a student measures the percentage change in mass of potato cylinders in different sucrose concentrations. At 0.2 mol dm⁻³, the percentage change is +12%. At 0.8 mol dm⁻³, it is −18%. What happens to the potato cells at 0.8 mol dm⁻³?
- Water leaves the cells by osmosis and the cells lose mass.
- Water enters the cells by osmosis and the cells gain mass.
- Sucrose diffuses into the cells, increasing their mass.
- Sucrose is actively transported out of the cells, decreasing their mass.
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