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प्रश्न
Addition of salt to pickles is a method of killing the bacteria by ______.
पर्याय
Imbibition
Diffusion
Deplasmolysis
Plasmolysis
उत्तर
Addition of salt to pickles is a method of killing the bacteria by plasmolysis.
Explanation:
Salt added to the pickle raises the solute concentration outside of the bacterial cells. As a result, water moves outside of the cell and kills the bacteria.
संबंधित प्रश्न
Give scientific reasons : Balsam plants wilt during mid-day even if the soil is well watered.
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’.
Give reason for the following:
A plant cell, when kept in a hypertonic salt solution for about 30 minutes, turns flaccid.
Distinguish between the following:
Flaccid condition and turgid condition
Differentiate between:
Turgid and Flaccid.
Differentiate between the following
Turgor pressure and Root pressure
Give Technical Term for the following.
A cell in a fully extended 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.
Deplasmolysis occurs when a plasmolysed cell is placed in ______.
Excessive use of fertilisers in agricultural fields reduces the yield of crops. Justify the statement.
