Diffusion 0.0 / 5 ? BiologyDiffusionGCSEAQA Created by: asho glenoCreated on: 13-04-15 13:36 Diffusion is the movement of particles from an area of high concentration... to an area of low concentration 1 of 11 It takes place because of the random movement of the particles of a... gas or of a substance in solution in water 2 of 11 1. Concentration gradient - The longer the difference in the the no. of particles in each area... the faster the rate of diffusion 3 of 11 2. Temperature - The higher the temperature, the more... kinetic energy the particles have, so the faster they move 4 of 11 3. Surface Area - The larger the surface area... the faster the rate of diffusion 5 of 11 Examples of Diffusion in livng organisms - Glucose and amino acids from the... breakdown of proteins into your gut, can alo pass through membranees 6 of 11 In the alveoli, the Oxygen moves into the blood by D and... the CO2 passes out of the blood by D 7 of 11 Lungs have - A good surface area and... blood supply 8 of 11 A thin Diffusion distance and is... moist (D takes place quicker through a wet surface) 9 of 11 Lungs have - A good surface area and... blood supply 10 of 11 A thin Diffusion distance and is... moist (D takes place quicker through a wet surface) 11 of 11
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