flash cards 0.0 / 5 ? BiologydiffusionGCSEAQA Created by: JodieCreated on: 06-04-16 14:20 what is diffusion when molecules can spread to high and low concentration 1 of 6 What small molecules can pass through a membrane easily oxygen, water and carbon dioxide 2 of 6 why do cells need food substances so they can digest food, need water to stay alive and they need to expel carbon dioxide 3 of 6 what are the diffusion factors temperature,pressure and distance 4 of 6 what can also speed up the rate of diffusion enzymes 5 of 6 Is diffusion the only way they can leave and enter the cell no they can work against concentration difference through active transport 6 of 6
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