B3

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What is osmosis?
When water molecules move from a high concentrated area to one of low concentration throgh a partially permeable membrane.
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What is active transport?
The movement of molecules, against the concentration gradient, using energy.
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Where are the exchange surfaces?
Kidneys, lungs and intestines
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What is gas exchange?
the movement of oxygen into the blood and carbon dioxide into the air
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where does gas exchange occur?
in the alveoli in the lungs
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Other cards in this set

Card 2

Front

What is active transport?

Back

The movement of molecules, against the concentration gradient, using energy.

Card 3

Front

Where are the exchange surfaces?

Back

Preview of the front of card 3

Card 4

Front

What is gas exchange?

Back

Preview of the front of card 4

Card 5

Front

where does gas exchange occur?

Back

Preview of the front of card 5

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