Beetroot Permeability Experiment - A-level Biology Watch

gandalfhan
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Do we need to know the steps for this practical and the whole process and what happens for exams? Or osmosis practical is the one we need to know?
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2003mel
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For the new spec of Edexcel IAL, it stated CORE PRACTICAL 3 "Investigate membrane properties including the effect of alcohol and temperature on membrane permeability" and RECOMMENDED ADDITIONAL PRACTICAL "Investigate tissue water potentials using plant tissue and graded concentrations of a solute." Personally I've quite a lot of past paper (old spec) and there are a few questions about investing effect of temperature (or alcohol concentration) of beetroot membrane and I suggest you take a look at the mark scheme of it. It's basically all u need to know for that experiment. I'll say do make sure u know everything mentioned in the spec cuz u will never know what will come up in the exam. For the osmosis one, I'm not sure but I did both practical in the school lessons.

Hope this will help answer ur question
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