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प्रश्न
Give Reasons for the following.
We gargle with saline water in case of throat infection.
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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.
संबंधित प्रश्न
Differentiate between Diffusion and Osmosis (Definition)
Differentiate between Turgor pressure and Wall pressure (explain)
Differentiate between the following on the basis of what is indicated in the bracket.
Hypotonic solution and Hypertonic solution (condition of a plant cell when placed in them).
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
Choose the correct answer:
Osmosis involves diffusion of ___________
Give a diagrammatic representation of plasmolysis in a cell.
Given below is the figure of an experimental set up to demonstrate root pressure.
(i) Define root pressure.
(ii) What change would you observe in the water level after some time?
(iii) What role is being played by the root pressure in the given experiment?
(iv) Why the oil has been sprinkled on water?
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cells that have lost their water content are said to be deplasmolysed.
Multiple Choice Question:
Osmosis involves:
Explain the Term:
Osmosis
