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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.
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संबंधित प्रश्न
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
What is responsible for guttation?
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ______.
Name the following:
The pressure with which the molecules of a substance diffuse.
Name the following:
Condition of cell in which the cell contents are shrunken.
Choose the correct answer:
If a marine plant is transferred to fresh water, it bursts due to ___________
The diagram below represents an experimental set up to demonstrate a vital process. Study the same and then answer the questions that follow:
(i) Name the process.
(ii) Define the above named process.
(iii) What would you observe in the experimental setup after an hour or so?
(iv) What control experiment can be set up for the above experiment?
(v) Keeping in mind the root hair cell and its surrounding name the part that corresponds to (1) Concentrated sugar solution, (2) Parchment paper, (3) Water in the beaker.
(vi) Name any other substance that can be used instead of parchment paper in the above experiment.
(vii) Mention two advantages of this process to the plant.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Plasmolysis makes the cell turgid.
