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प्रश्न
Differentiate between:
Turgid and Flaccid.
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उत्तर
| Sr. No. | Turgid | Flaccid |
| (i) | It occurs when the cell is placed in hypotonic solution. | It occurs when the cell is placed in a hypertonic solution. |
| (ii) | It occurs due to endosmosis. | It occurs due to exosmosis. |
| (iii) | The condition in which the cell wall is rigid and stretched due to the absorption of water is called turgidity. | The state in which the cell content is shrunken is called flaccidity. |
| (iv) | It is the state of a cell in which the cell wall is rigid and stretched by an increase in the volume of vacuoles due to the absorption of water. | It is the condition in which the cell content is shrunken and the cell is not tight. |
| (v) | Water moves into the cell. | Water moves out of the cell. |
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संबंधित प्रश्न
The state of a cell in which the cell wall is rigid and stretched by the increase in volume due to the absorption of water is called.
Give the equivalent terms for the following:
Loss of water through a cut stem.
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If you sprinkle some common salt on grass growing on a lawn, it is killed at that spot.
Give reason for the following:
It is better to transplant seedlings in a flower-bed in the evening and not in the morning.
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.
Differentiate between the following:
Plasmolysis and Deplasmolysis.
Name the following:
The condition in which the contents of a cell exert pressure against the cell wall making it distended.
Addition of salt to pickles is a method of killing the bacteria by ______.
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.
