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Osmosis - why must potato samples be the same size
So each potato has equal water potential
Osmosis - why must the skins be removed off the potato samples
Potato skin has a different permeability, it’s made from a different tissue
Beetroot - why are the disc samples washed
To remove any excess pigment on the outside
Why must we shake the test tube - beetroot
To evenly distribute the pigment throughout the solution
Note 
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