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प्रश्न
Differentiate between the following:
Turgor pressure and wall pressure
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उत्तर
| Turgor Pressure | Wall Pressure | ||
| 1. | The hydrostatic pressure that endosmosis creates against the cell wall is known as turgor pressure. | 1. | The force that the cell wall exerts against turgor pressure is known as wall pressure. |
| 2. | Turgor pressure acts on the cell wall. | 2. | Cell wall pressure is generated by the cell wall. |
| 3. | Turgor pressure keeps plant stems upright, expands leaves and aids in the opening and closing of stomata, among other things. | 3. | Wall pressure maintains cell and plant structure. |
| 4. | The direction of Turgor pressure is towards the outside. | 4. | The direction of wall pressure is towards the inside of the cell. |
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संबंधित प्रश्न
The diagram given below represents a plant cell after being placed in a strong sugar solution. Study the diagram and answer the questions that follow:
- What is the state of the cell shown in the diagram?
- Name the structure that acts as a selectively permeable membrane.
- Label the parts numbered 1 to 4 in the diagram.
- How can the above cell be brought back to its original condition? Mention the scientific term for the recovery of the cell.
- State any two features of the above plant cell which is not present in animal cells.
Explain Turgor pressure
Give scientific reasons : Balsam plants wilt during mid-day even if the soil is well watered.
The below diagram represents a plant cell after being placed in a strong sugar solution. Guidelines 1 to 5 indicate the following:
1. Cell wall
2. Plasma membrane.
3. Protoplasm
4. Large vacuole
5. Nucleus
Study the diagram and answer the questions that follow :
(i) What is the state of the cell shown in the diagram?
(ii) Name the structure which acts as a selectively permeable membrane.
(iii) If the cell had been placed in distilled water instead of a strong sugar solution which features: would not have been present?
(iv) If the cell in the diagram possessed chloroplasts where would these be present?
(v) Name any one feature of this plant cell which is not present in animal cells.
Give Technical Term for the following.
The pressure exerted by cell contents on a plant cell wall.
Name the following:
The process by which wilting or drooping of leaves occurs.
Deplasmolysis occurs when a plasmolysed cell is placed in ______.
When the cells of a plant are fully distended, the condition is called ______.
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.
