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प्रश्न
Differentiate between the following:
Turgidity and Flaccidity
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उत्तर
| Turgidity | Flaccidity | ||
| 1. | It is the state of a cell in which the cell cannot accommodate any more water and is fully distended. | 1. | It is the condition in which the cell content is shrunken and the cell is not tight. |
| 2. | The availability of sufficient water causing the cells to become charged with water with its walls in a state of tension making the cells rigid and stretched. | 2. | The unavailability of sufficient water causes the cells to become weak and soft due to decreased turgor pressure. |
| 3. | This condition causes wilting in plants. | 3. | This condition makes plants stiff and erect. |
APPEARS IN
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.
Give reason for the following:
A plant cell, when kept in a hypertonic salt solution for about 30 minutes, turns flaccid.
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.
Name the following:
The process by which wilting or drooping of leaves occurs.
Fill in the Blank
The condition opposite to turgid is ___________.
Deplasmolysis occurs when a plasmolysed cell is placed in ______.
Given below is the figure of a plant cell showing different kinds of pressure acting upon it. Study the figure and answer the questions that follow:
- In the figure, 1, 2 and 3 represent:
- Cytoplasm, Nucleus, Vacuole respectively
- Vacuole, Cytoplasm, Cell wall respectively.
- Cytoplasm, Cell membrane and vacuole respectively.
- Cytoplasm, Cell wall and Vacuole respectively.
- B in the figure represents:
- Osmotic pressure
- Turgor pressure
- Wall pressure
- Diffusion pressure
- A in the figure represents:
- irnbibition pressure
- Wall pressure
- Turgor pressure
- Osmotic pressure
- C in the figure represents:
- Turgor pressure
- Osmotic pressure
- Wall pressure
- Imbibition pressure
- Draw a neat and labelled diagram of a plasmolyzed plant cell.
