BIOLOGY DIFFUSION

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what is the definition of diffusion?
The movement of particles in a gas or particles in a solution from a region of high concentration to an area of low concentration.
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what happens if the concentration is equal?
There is no net movement.
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How do you measure the rate of diffusion?
The greater the difference in concentration the faster the rate of diffusion.
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Why does oxygen not diffuse in and out of the cell continuously?
-Because the oxygen concentration doesn't build up in the cell as it is used up chemical reactions and the oxygen is constantly being supplied.
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If the cell doesn't want the ................... to leave then the .......................... will.............them.
particles,cell membrane,stop
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When particles diffuse in,is energy used?
No energy is used.
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When particles diffuse out,is energy used?
yes energy is used.
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Card 2

Front

what happens if the concentration is equal?

Back

There is no net movement.

Card 3

Front

How do you measure the rate of diffusion?

Back

Preview of the front of card 3

Card 4

Front

Why does oxygen not diffuse in and out of the cell continuously?

Back

Preview of the front of card 4

Card 5

Front

If the cell doesn't want the ................... to leave then the .......................... will.............them.

Back

Preview of the front of card 5
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