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Questions
Name the following:
Condition of cell in which the cell contents are shrunken.
Name the condition in which the cell contents are shrunken.
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Solution
Plasmolysis
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The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
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Give a diagrammatic representation of plasmolysis in a cell.
In an experiment, two sets of apparatus were set up as shown below:
In A there is a concentrated sugar solution inside the thistle funnel and red ink in the water outside the funnel. In B there is a concentrated glucose solution with red ink inside the thistle funnel and water outside the thistle funnel.
In both A and B the level of liquid inside the funnels rises up the tubes. In A the sugar solution turns red and in B, the water turns red.
Study the given observations and answer these questions:
- Name the process by which red ink moves in A and B.
- Which type of pressure forces the water molecules to move towards thistle funnels and cause a rise in the water level?
- Where does this process occur in plants and animals?
- What material could be used as a semi-permeable membrane?
Name the following:
The pressure through which water can rise upto some feet.
Multiple Choice Question:
Plasma membrane controls:
