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प्रश्न
Excessive use of fertilisers in agricultural fields reduces the yield of crops. Justify the statement.
उत्तर
The excessive use of fertilizers in agriculture increases the concentration of solvents outside of the root cells, which causes exosmosis. The state of the crops becomes plasmolysis/Flaccid, which results in a diminishing yield.
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संबंधित प्रश्न
A plant cell may burst when :
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 reason for the following:
A plant cell, when kept in a hypertonic salt solution for about 30 minutes, turns flaccid.
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
Soaked seeds burst into three seed coats.
Differentiate between the following:
Plasmolysis and Deplasmolysis.
Give Technical Term for the following.
A cell in a fully extended condition.
The hydrostatic pressure of the cell sap on the cell wall is called ______.
Addition of salt to pickles is a method of killing the bacteria by ______.
Give the equivalent term for the following:
Pressure exerted by the cell contents on the cell wall.
