BI-1688
Osmosis
Biology · Secondary 4 · Hard · Osmosis
In an experiment, a student places identical potato strips into three sucrose solutions of concentrations 0.1 mol/dm³, 0.3 mol/dm³ and 0.5 mol/dm³. After 30 minutes, the strip in 0.1 mol/dm³ gains mass, while the strip in 0.5 mol/dm³ loses mass. What happens to the strip in 0.3 mol/dm³ if its water potential is equal to that of the potato cells?
- Its mass stays approximately the same.
- Its mass increases the most among the three strips.
- Its mass decreases the most among the three strips.
- It first gains mass then loses mass rapidly.
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