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AS Biology - Investigating Water Potential of Swede

Hi,

I'm stuck on some questions about this practical. If you can't answer them all, that is fine but please try to help me.

1) Explain the importance of drying the swede cylinders before and after soaking in the bathing solution.

2) Why is it important to remove the swede cylinders from the bathing solution in the same order that they were put in?

3) After working out the change in mass, what additional calculation would help eliminate any differences between the cylinders and give at a more accurate result?

4) How would you access the reliability of the results?

5) What are the limitations of this investigation? How sure can you be that the water potential value is accurate?

6) Why were bungs placed in the tubes?


Thanks.
Popped this in the Biology forum for you :h:

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