Olivia Brooklyn
Mind Map by , created over 5 years ago

GCSE Biology (Cells) Mind Map on Diffusion, created by Olivia Brooklyn on 03/22/2014.

Olivia Brooklyn
Created by Olivia Brooklyn over 5 years ago
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1 Dissolved substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen
2 Diffusion occurs when particles spread
2.1 They move from a region where they are in high concentration to a region where they are in low concentration
2.1.1 This is true in gases and for particles dissolved in solutions
3 Diffusion happens when the particles are free to move
4 Particles diffuse down a concentration gradient, from an area of high concentration to an area of low concentration
5 EG. This is how the smell of cooking travels around the house from the kitchen

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