Unit 3-Osmosis

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What is osmosis?
The diffusion of water across a partially permeable membrane.
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What does osmosis diffuse from?
A high concentration of water to a low concentration of water.
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What molecules do a partially permeable membrane allow to pass?
Small molecules, like water.
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Why does osmosis happen?
Due to the random movement of molecules in a solution.
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If a solution has more water than other substance, what is it?
A dilute solution.
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If a solution has less water than other substance, what is it?
A concentrated solution?
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If there is a dilute solution, what is there a higher chance of?
There is a higher change of osmosis because there is more water molecules.
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What way does water flow?
Toward the concentrated solution.
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Why would an animal cell become turgid?
If it is put in a solution more dilute than it's cytoplasm.
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Why would an animal cell become flaccid?
If it is put in a solution more concentrated than it's cytoplasm.
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What happens to a plant cell if it is put in a solution more dilute than it's cytoplasm?
It's cell membrane will push against the cell wall.
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What happens to a plant cell if it is put in a solution more concentrated than it's cytoplasm?
It's cell membrane will pull away from the cell wall.
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What does the cell wall prevent happening in a dilute solution?
It prevents the plant from bursting.
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What does the cell wall prevent happening if the plant doesn't get enough water?
The cell wall prevents the plant from collapsing.
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What is the cell wall of a plant strong enough to do?
It's strong enough to maintain the shape of the cell if the cell membrane has pulled away.
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Other cards in this set

Card 2

Front

What does osmosis diffuse from?

Back

A high concentration of water to a low concentration of water.

Card 3

Front

What molecules do a partially permeable membrane allow to pass?

Back

Preview of the front of card 3

Card 4

Front

Why does osmosis happen?

Back

Preview of the front of card 4

Card 5

Front

If a solution has more water than other substance, what is it?

Back

Preview of the front of card 5
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