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प्रश्न
Give Reasons for the following.
Drops of water on a leaf of plant like peepal does not enter the leaf by osmosis?
उत्तर
Due to the presence of cuticle, which does not allow water molecules to pass through it.
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संबंधित प्रश्न
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Addition of salt to pickles prevents growth of bacteria because they turn turgid.
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
Define the following:
Osmosis
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Give Reasons for the following.
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered. Why?
Given below is the figure of an experimental set up to demonstrate root pressure.
(i) Define root pressure.
(ii) What change would you observe in the water level after some time?
(iii) What role is being played by the root pressure in the given experiment?
(iv) Why the oil has been sprinkled on water?
Give Technical Term for the following.
The condition in which the water from a cell is completely removed due to exosmosis and no more shrinkage is possible.
Name the following:
Name the process by which water enters the root hair cell.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
During exosmosis, water moves from inside the cell to the outside of the cell.
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.
