BI-1721
Osmosis
Biology · Secondary 4 · Hard · Osmosis
A student places identical potato strips into four sugar solutions of different concentrations. After 3 hours, she measures the percentage change in length of each strip and plots a graph. The point where the graph crosses the line of 0% change in length is at a sugar concentration of 0.25 mol dm⁻³. What does this concentration represent?
- The sugar concentration that makes the potato cells fully turgid
- The sugar concentration where water potential of potato equals the solution
- The sugar concentration that causes maximum gain in length
- The sugar concentration that causes maximum loss in length
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