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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
Explain Turgor pressure
The diagram below represents a process in plants. The setup was placed in bright sunlight. Answer the following questions:
a) Name the physiological process depicted in the diagram.
Why was oil added to the water?
b) When placed in bright sunlight for four hours, what do you observe with regard to the initial and final weight of the plant? Give a suitable reason for your answer
c) What happens to the level of water when this setup is placed in:
- Humid conditions?
- Windy conditions?
d) Mention any three adaptations found in plants to overcome the process mentioned in (i).
e) Explain the term ‘Guttation’.
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 term for the following:
The condition in which the cell contents are shrunken.
Give the equivalent terms for the following:
Loss of water through a cut stem.
Give reasons for the following:
If you sprinkle some common salt on grass growing on a lawn, it is killed at that spot.
Fill in the Blank
Wilting and drooping of leaves is due to loss of ________.
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.
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.
