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प्रश्न
Give Reasons for the following.
We gargle with saline water in case of throat infection.
उत्तर
The salt solution (saline water) is hypertonic and when we gargle with it, comes in contact of infection causing bacteria in the throat. The water present in the bacterial cell comes out causing plasmolysis and they get killed giving us relief from infection.
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संबंधित प्रश्न
Differentiate between Diffusion and Osmosis (Definition)
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Addition of salt to pickles prevents growth of bacteria because they turn turgid.
Define the following:
Hypertonic solution
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Plasmolysis is reverse of deplasmolysis.
Give Reasons for the following.
It is necessary to maintain a normal osmotic concentration of the blood.
Give Reasons for the following.
Salt and sugar are used in preserving food.
Give Technical Term for the following.
Solutions which have the same osmotic pressure.
Multiple Choice Question:
Osmosis involves:
DPD of a cell can be expressed as ______
