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cell membranes

Asked by msbea10 | Feb 5, 2008 | AS Level > Biology > Revision
msbea10
msbea10 asks:

Im trying to think of a possible question that could be asked in an experiment design on transport across cell membranes and cant think of any.
A little help please!!!

etutor answers:
It rather depends on whether you are going to have to do the experiment that results! Some questions cannot easily be investigated in a school lab. The usual experiment at AS level is the effect of temperature on membrane permeability in beetroot cells. Other questions might be "What is the relationship between concetration differential and speed of transport?" of "How does temperature affect the speed of transport?" (The beetroot one is not the same as this, as temperatures are used in that high enough to actually denature the membrane).

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