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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
The highest water potential (capacity to move out higher concentrated solution) is that of ______.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
Complete the following statements:
Hypotonic solution is one in which the solution kept outside the cell has lower solute concentration than ……………… the cell.
When placed in a more concentrated solution, the cell contents will ______.
(a) Mention whether the following statement is true (True) or false (False)
(b) Correct the false statement by altering the last word only.
A plant cell placed in hypotonic solution gets Plasmolysed.
Give Reasons for the following.
The raisins swell up in the 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.
During a practical exam, a plant cell in a particular solution was placed under a compound microscope. Students were told to observe the cell and name the tonicity of the solution and mention the process that occurred in the cell.
Define the following term:
Tonicity
