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प्रश्न
Explain the Term: Exosmosis
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उत्तर
Exosmosis: It is the movement of water molecules from the cell into the outer surroundings.
संबंधित प्रश्न
Give two examples of turgor movements in plants.
Name the following:
Condition of cell in which the cell contents are shrunken.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Give Reasons for the following.
We gargle with saline water in case of throat infection.
Give Reasons for the following.
Drops of water on a leaf of plant like peepal does not enter the leaf by osmosis?
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 movement of a liquid through a selectively permeable membrane.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cells that have lost their water content are said to be deplasmolysed.
During a practical exam, a plant cell in a particular solution was placed under a compound microscope. Students were told to observe the cell and name the tonicity of the solution and mention the process that occurred in the cell.
Define the following term:
Osmotic Pressure
