Exchange surfaces

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Name four ways exchange surfaces have adapted to its function
A large surface area (more of a substance to diffuse) Ventilation (surface is ventilated to maintain a high concentration) Thin Membrane (reduces diffusion distance) Blood Supply (replenish blood supply used in diffusion)
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Name five examples of exchange surfaces
Small intestine (exchanging nutrients with digested food), lungs (exchanging carbon dioxide and oxygen), gills (exchanging oxygen and carbon dioxide) , leaves (exchanging carbon dioxide and oxygen) and roots (takes up water and minerals from soil)
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How many specialised exchange surfaces are there?
5
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What are exchange surfaces?
Exchange surfaces are surfaces that are adapted to maximise the efficiency of gas and solute (a substance dissolved in a liquid) exchange across them.
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Explain the ventilation adaptation
In animals, if a gas is exchanged, the surface is ventilated (through breathing) to maintain a high concentration gradient and increase the rate of exchange
5 of 5

Other cards in this set

Card 2

Front

Name five examples of exchange surfaces

Back

Small intestine (exchanging nutrients with digested food), lungs (exchanging carbon dioxide and oxygen), gills (exchanging oxygen and carbon dioxide) , leaves (exchanging carbon dioxide and oxygen) and roots (takes up water and minerals from soil)

Card 3

Front

How many specialised exchange surfaces are there?

Back

Preview of the front of card 3

Card 4

Front

What are exchange surfaces?

Back

Preview of the front of card 4

Card 5

Front

Explain the ventilation adaptation

Back

Preview of the front of card 5

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