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प्रश्न
Give Reasons for the following.
Salt and sugar are used in preserving food.
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उत्तर
Salt and sugar increase the concentration of food, destroying bacteria by plasmolysis.
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संबंधित प्रश्न
Give the appropriate biological or technical term for the following.
Movement of molecules of a substance from their higher concentration to lower concentration when they are in direct contact.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
What do you mean by transpiration pull ?
Give at least three uses of water to green plants
Give Reasons for the following.
We gargle with saline water in case of throat infection.
Differentiate between the following
Endosmosis and Exosmosis
Give a diagrammatic representation of plasmolysis in a cell.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
