Transport systems

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What is diffusion?
the free movement of particles in a liquid down a concentration gradient from high concentration to low contentration
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What happens when an organism becomes larger?
the smaller the surface area to volume ratio becomes
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What about the distance from the outside?
the organism to the inside gets longer and there is less surface forsubstances to enter through
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Therefore what?
It takes longer for substances to diffuse in
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What is the definition of osmosis?
The movement of water along a concentration gradient through a partially permeable membrane
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What is the definition of active transport?
energy used to move substances against the concentration gradient
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What is the first structure of water?
dipolarity
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What does this mean?
the oxygen is negative and hydrogen is positive
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What does the polarity of water allow?
attracted to charges, spread out among them water molecules
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Card 2

Front

What happens when an organism becomes larger?

Back

the smaller the surface area to volume ratio becomes

Card 3

Front

What about the distance from the outside?

Back

Preview of the front of card 3

Card 4

Front

Therefore what?

Back

Preview of the front of card 4

Card 5

Front

What is the definition of osmosis?

Back

Preview of the front of card 5
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