diffusion

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diffusion is..
the spreading out of particles from an area of high concentration to an area of low concentration
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diffusion happens in..
liquids and gases
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this is because...
the individual particles are free to move around randomly.
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what can very small molecules do?
diffuse through cell membranes (e.g. sugars, water, ions)
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big molecules can't???
pass through the membrane (e.g. starch and proteins)
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Card 2

Front

diffusion happens in..

Back

liquids and gases

Card 3

Front

this is because...

Back

Preview of the front of card 3

Card 4

Front

what can very small molecules do?

Back

Preview of the front of card 4

Card 5

Front

big molecules can't???

Back

Preview of the front of card 5

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