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प्रश्न
Give at least three uses of water to green plants
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उत्तर
(i) Water is major component of protoplasm.
(ii) It is an important raw material for photosynthesis.
(iii) Most metabolic and enzymatic reactions take place in the presence of water.
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संबंधित प्रश्न
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
Name the following:
The condition of a cell placed in a hypotonic solution.
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Explain how soaked seeds swell up and burst their seed coats.
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.
Name the following:
The movement of a liquid through a selectively permeable membrane.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Plasmolysis makes the cell turgid.
Multiple Choice Question:
In the process of osmosis in a cell:
Multiple Choice Question:
When a plant wilts, the sequence of events will be as follows:
The given statement is incorrect. Rewrite the correct statement:
Fresh water fish when placed in hypertonic salt solution absorb water and burst.
