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प्रश्न
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ______.
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उत्तर
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of turgor movements.
संबंधित प्रश्न
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Plasmolysis is reverse of deplasmolysis.
Give at least three uses of water to green plants
Differentiate between the following
Endosmosis and Exosmosis
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.
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.
Explain the Term:
Osmosis
Name the two organelles in a plant cell that contain their own genetic material and ribosomes.
Define the following term:
Tonicity
