Gas Exchange

  • Created by: ellael2
  • Created on: 17-04-18 19:34
What is supply?
The rate at which metabolites can enter a cell or organism.
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What is supply dependent on?
The surface area of the relevant exchange surface.
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What is demand?
The rate at which an organism uses its metabolites.
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What is demand dependent on?
The number of active cells in the body.
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Choose the correct words. The larger/smaller the organism, the larger/smaller the surface area to volume ratio.
Larger, smaller
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What are the two ways in which large active organisms can overcome the limitations of a small surface area to volume ratio.
1. Adaptation that increase the area of exchange surfaces
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Other cards in this set

Card 2

Front

What is supply dependent on?

Back

The surface area of the relevant exchange surface.

Card 3

Front

What is demand?

Back

Preview of the front of card 3

Card 4

Front

What is demand dependent on?

Back

Preview of the front of card 4

Card 5

Front

Choose the correct words. The larger/smaller the organism, the larger/smaller the surface area to volume ratio.

Back

Preview of the front of card 5
View more cards

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