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प्रश्न
Explain why:
The leaves of wilted lettuce, if kept in cold water, become crisp.
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उत्तर
The leaves of the wilted lettuce become crisp when kept in cold water because they take up water due to endosmosis in hypotonic solution.
संबंधित प्रश्न
Distinguish between the following:
Hypotonic and Hypertonic solutions
Distinguish between the following:
Plasmolysis and deplasmolysis
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and B), the container A having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the softness and decrease in size of the potato cubes which were placed in sugar solution.
A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
Comment on the nature (tonicity) of the liquid surrounding the cell.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The plasma membrane permits the passage of all solutes and water.
Multiple Choice Question:
Osmosis involves:
Multiple Choice Question:
When a plant wilts, the sequence of events will be as follows:
When a cell in solution shrinks and loses its shape, then the solution is ______.
