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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.
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संबंधित प्रश्न
A plant cell placed in a certain solution got plasmolysed. What was the kind of solution?
Give the equivalent terms for the following:
Pressure of the cell contents on the cell wall
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The shrinkage of protoplasm, when a cell is kept in hypotonic solution.
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
Give at least three uses of water to green plants
The beaker is divided into two chambers A and B. The big circle represents solute and the small circles solvent.
(i) What can you say about the size of the holes in the membrane, if it is to behave semi- permeably between these two?
(ii) Will the solvent molecules pass through the membrane from left to right, from right to left, in either direction or in both directions?
(iii) In which direction will there be a net movement of solvent molecules?
Fill in the Blank
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.
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.
