Effect of osmosis and sugar concentration on the mass of plant tissue: analysis

12 questions

1. Match each variable to the correct example when investigating the effect of sugar solution concentration on potato chips.
2. When investigating the effect of sugar solution concentration on potato chips, which piece of apparatus was used to control the temperature?
3. At which concentration did the potato chip decrease in mass?
4. Which concentration caused the potato chips to lose water by osmosis?
5. Whose prediction is correct?
6. Water can move out of and into potato chips because the potato cells have a selectively-___ membrane.
7. Calculate the change in mass, in grams (g), for the potato chip in sugar solution at a concentration of 0.25 mol/dm^3.
8. Calculate the percentage change in mass (%) for the potato chip in sugar solution at a concentration of 0.25 mol/dm^3. Give your answer to 2 decimal places.
9. Why is it necessary to calculate the percentage change in mass before comparing the effect of concentration on the potato chips?
10. Calculating the percentage change in mass helps to remove __________ error from the results.
11. Match each direction of water movement to where it is shown on the graph.
12. Which point on the graph enables us to estimate the concentration of sugar inside the potato chip cells?

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