Aim: To see how diffusion of a substance affects the surface area to volume ratio of a body. ... Cut cubes to size
Step 2. ... Cube size SA: V
3cm, 2cm, 1cm 2:1, 3:1, 6:1, 60:1
The two lists compare differently. The smaller size of cubes seems to have the bigger ratio while the bigger size cubes have the smaller ratio. ... Only diffusion could have taken place because osmosis only happens in water molecules and active transport only takes place in living things, while diffusion is the net movement of substance from region of high concentration to lower concentration.
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