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प्रश्न
What is the difference between ‘flaccid’ and ‘turgid’? Give one example of flaccid condition in plants.
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उत्तर
The cell is said to be turgid when the plant cell wall becomes rigid and stretched by an increase in the volume of vacuoles due to the absorption of water when placed in hypotonic solution. On the other hand, the cell is said to be flaccid when the cell contents get shrunken when the cell is placed in hypertonic solution and the cell is no more tight. Flaccidity is the reverse of turgidity. Example: Weeds can be killed in a playground by sprinkling excessive salts around their base.
Or
A plant cell when immersed in hypertonic solution like salt solution for about 30 minutes will become flaccid or limp.
संबंधित प्रश्न
Differentiate between the following:
Turgor pressure and wall pressure
Mention whether the following statement is true or false Correct the false statement by altering the last word only.
Cells that have lost their water content are said to be deplasmolysed.
Give reasons for the following:
If you sprinkle some common salt on grass growing on a lawn, it is killed at that spot.
A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
- Give the term for the state of the cell it has acquired.
- Name the structure which acts as a selectively permeable membrane.
- Comment on the nature (tonicity) of the liquid surrounding the cell.
- Name any one feature of this plant cell which is not present in an animal cell.
- Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.
Differentiate between the following:
Plasmolysis and Deplasmolysis.
Name the following:
The process by which wilting or drooping of leaves occurs.
Fill in the Blank
The condition opposite to turgid is ___________.
Multiple Choice Question:
When cell is fully turgid, which of the following will be zero?
The hydrostatic pressure of the cell sap on the cell wall is called ______.
Give the equivalent term for the following:
Pressure exerted by the cell contents on the cell wall.
