BI-1752
Osmosis
Biology · Secondary 4 · Hard · Osmosis
Leaf discs are placed in four solutions of different sucrose concentrations. After 2 hours, the mass of discs in 0.1 mol dm⁻³ solution increases, while the mass of discs in 0.5 mol dm⁻³ solution decreases.
Which statement explains these results?
Which statement explains these results?
- Water enters the discs in both solutions by osmosis.
- Water leaves the discs in both solutions by osmosis.
- Water enters the discs in 0.1 mol dm⁻³ and leaves them in 0.5 mol dm⁻³ by osmosis.
- Sucrose diffuses into the discs in 0.1 mol dm⁻³ and out in 0.5 mol dm⁻³.
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