Osmosis and Cell changes

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9 Terms

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Isotonic solution

Same solute concentration inside and outside the cell. No net movement of water

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Hypertonic Solution

More solute and less water outside the cell. Water moves out

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Hypotonic Solution

Less solute and more water outside the cell. Water moves in

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Crenation

When an animal cell shrinks because water leaves itq

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Lysis

When a cell bursts because too much water enters

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Osmotic pressure

The pressure needed to stop water moving by osmosis across a selectively permeable membrane

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Plasmolysis

When a plant cell loses water and its membrance pulls away from the cell wall

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Turgor pressure

Pressure caused by water inside a plant cell pushing the membrane against the cell wall

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NaCl

Sodium chloride. Also known as salt