Diffusion and Osmosis and Active Transport

Hello everyone, I have my GCSE Biology papers in May and June 2016 so this is my daily revision from my DG Mackean book. If you find anything incorrect just message me and I'll change it. Thank you very much everyone! 

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whiteross823

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Hi at many points through the presentation it mentions conceration which i think should be concentration thanks

badsideman123

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thanks man