Getting in and out of cells

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  • Created by: Amy
  • Created on: 22-01-14 22:07
Define diffusion
The movement of particles through the air
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If particles are clumped together, what kind of concentration will they have?
High concentration
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If particles are spread out, what kind of concentration will they have?
Low concentration
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What is the concentration gradient?
The difference between high and low concentration
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What would make the diffusion rate faster?
A bigger difference in concentration
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How do cell membranes allow diffusion to occur?
They have tiny holes that allow dissolved substances in and out
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What is meant by partially permeable?
Only certain types of particles can get through (eg. no large particles)
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Describe the net movement
Movement of particles from a higher concentration to a lower concentration
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Why do plants have a lower rate of diffusion?
Because they do not respire as much as animals.
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Card 2

Front

If particles are clumped together, what kind of concentration will they have?

Back

High concentration

Card 3

Front

If particles are spread out, what kind of concentration will they have?

Back

Preview of the front of card 3

Card 4

Front

What is the concentration gradient?

Back

Preview of the front of card 4

Card 5

Front

What would make the diffusion rate faster?

Back

Preview of the front of card 5
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