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प्रश्न
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.
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उत्तर
(i) Flaccid.
(ii) Plasma membrane.
(iii) If the cell had been placed in distilled water it remains in a fully distended condition. Its plasma membrane remains in close contact with the cell wall and presses against it.
(iv) Chloroplast will be present in the protoplasm outside the vacuole.
(v) Cell wall.
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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.
What is the difference between ‘flaccid’ and ‘turgid’? Give one example of flaccid condition in plants.
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.
Give suitable biological reasons for the following statement:
Root hairs become flaccid and droop when excess fertilizers are added to the moist soil around them.
Distinguish between the following:
Flaccid condition and turgid condition
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Flaccidity is the reverse of turgidity.
Multiple Choice Question:
When cell is fully turgid, which of the following will be zero?
Deplasmolysis occurs when a plasmolysed cell is placed in ______.
When the cells of a plant are fully distended, the condition is called ______.
