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प्रश्न
Name the following:
The process by which raisins swell up when placed in a beaker of water.
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उत्तर
Endosmosis
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संबंधित प्रश्न
What is responsible for guttation?
Differentiate between the following:
Plasmolysis and deplasmolysis
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Plasmolysis is reverse of deplasmolysis.
Give Reasons for the following.
Salt and sugar are used in preserving food.
Give Reasons for the following.
We gargle with saline water in case of throat infection.
Give Reasons for the following.
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered. Why?
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:
Condition of cell in which the cell content are shrunken.
Explain the term:
Plasmolysis
