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Osmosis

Learn about Osmosis

QuestionAnswer
Name the molecule that moves through the membrane during osmosis. water
Define osmosis Movement of water molecules from high water concentration to low water concentration through a selectively permeable membrane
When cells are placed in distilled water the cells mass will a) increase b) decrease increase
When cells are placed in salt solution the cells mass will a) increase b) decrease decrease
Animal cells in distilled water will Burst
Animal cells in concentrated salt solution will shrink
Explain why plant cells do not burst in distilled water Cell wall prevents cell bursting.
Plant cells in distilled water will go Turgid
Plant cells in concentrated sugar solution will go Plasmolysed
Describe a plasmolysed cell. Cell membrane pulls away from the cell wall AND the vacuole gets smaller
Describe a turgid cell. Cell membrane pushes up against the cell wall AND the vacuole gets larger
If a cell is placed in distilled water, explain the water movement. Water moves from higher water concentration OUTSIDE to lower water concentration inside.
If a cell is placed in concentrated sugar solution , explain the water movement. Water moves from higher water concentration INSIDE to lower water concentration OUTSIDE.
Explain why potato cylinders are blotted dry before being reweighed in the osmosis experiment To remove external water.
If a cell went from 5g to 7g was the cell placed in a) distilled water OR b) salt solution distilled water
If a cell's cytoplasm is 10% sugar whereas the solution is 5% sugar, state whether water would move in OR out of the cell. Water would Move IN (95% in solution HWC to 90% water LWC in cytoplasm
Created by: brightminds
 

 



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