Biology - Exchange in plants - B3.2.3

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  • Created by: shcoool
  • Created on: 16-05-15 18:59
Name three things that are taken in by a plant and how?
carbon dioxide enters leaves by diffusion, water and mineral ions are absorbed by roots
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How is surface area of roots increased?
root hairs
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How is the surface area of leaves increased?
flattened shape and internal air spaces
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What does a plant have to allow gases in and out?
Stomata (holes) to obtain carbon dioxide form air, to remove oxygen produced in photosynthesis and water vapour in transpiration
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Where do plants mainly lose their water?
From the stomata in the leaves
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In which conditions does evaporation happen the fastest?
hot, dry and windy conditions
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What happens if plants lose water faster than replaced by roots?
The stomata can close to prevent wilting
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How is the size of stomata controlled?
by guard cells
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Other cards in this set

Card 2

Front

How is surface area of roots increased?

Back

root hairs

Card 3

Front

How is the surface area of leaves increased?

Back

Preview of the front of card 3

Card 4

Front

What does a plant have to allow gases in and out?

Back

Preview of the front of card 4

Card 5

Front

Where do plants mainly lose their water?

Back

Preview of the front of card 5
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