International A Level Biology / Membranes and transport
Finding the water potential of plant tissue
Edexcel International A Level Biology (YBI11), chapter 4: Membranes and transport, specification point 2.4. Part of the full course.
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You can estimate plant tissue’s water potential by finding the sucrose solution in which potato cylinders show no net change in mass. The method depends on controlling variables, calculating percentage change correctly and interpreting the results using water potential.