Diffusion A quiz on diffusion 2.0 / 5 based on 1 rating ? BiologyExchange of materialsGCSEAQA Created by: GbCreated on: 17-03-13 15:11 What is diffusion? Net movement of particles from high to low concentration along a concentration gradient (in solution) 1 of 8 What allows the diffusion to take place? Random movement of particles 2 of 8 What is the equation for net movement? particles moving in - particles moving out 3 of 8 The greater the difference in concentration the ... the rate of diffusion faster 4 of 8 What is the concentration gradient? the difference in concentration between two areas 5 of 8 Does temperature increase the rate of diffusion? Yes 6 of 8 What gases diffuse in our bodies? Oxygen and carbon dioxide 7 of 8 How are many cells adapted to increase the rate of diffusion? Thin cell walls, large surface area and a good blood supply 8 of 8
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