U2) Simple Diffusion 0.0 / 5 ? BiologyCellular processesA2/A-levelAQA Created by: lieselb12Created on: 19-04-20 16:11 What is simple diffusion? Passive movement of particles in liquids and gases 1 of 6 Does it require energy? No 2 of 6 What is the net movement? Down concentration gradient from high to low 3 of 6 What 3 substances moves in and out of cells? CO2 O2 + urea 4 of 6 What are these molecules known as? Small + non polar (lipid soluble) 5 of 6 What factors affect simple diffusion? difference in concentration gradient + surface area+ diffusion pathway 6 of 6
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