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प्रश्न
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.
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उत्तर
Due to excessive application of fertilizers in the agricultural fields it damage the roots by plasmolysis process which results into flaccidity of root hairs.
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संबंधित प्रश्न
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’.
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.
What is the difference between ‘flaccid’ and ‘turgid’? Give one example of flaccid condition in plants.
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:
It is better to transplant seedlings in a flower-bed in the evening and not in the morning.
Differentiate between:
Turgid and Flaccid.
Fill in the Blank
Wilting and drooping of leaves is due to loss of ________.
Multiple Choice Question:
When cell is fully turgid, which of the following will be zero?
When the cells of a plant are fully distended, the condition is called ______.
