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प्रश्न
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
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उत्तर
Leaves of the sensitive plant wilt and droop down on a slight touch due to turgor movement. Petiole of sensitive plant is held up by turgid pulvinus tissue. The stimulus of touch leads to loss of turgor at the base of the leaflets and at the base of the petioles i.e. pulvinus. The cells of the lower side of pulvinus lose water and the petiole collapses. This causes the wilting and drooping of the leaves
संबंधित प्रश्न
The highest water potential (capacity to move out higher concentrated solution) is that of ______.
When placed in a more concentrated solution, the cell contents will ______.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
Distinguish between the following:
Plasmolysis and deplasmolysis
Name the following:
The inward movement of solvent molecules through the plasma membrane of the cell.
A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
Comment on the nature (tonicity) of the liquid surrounding the 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.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The plasma membrane permits the passage of all solutes and water.
Explain the Term: Exosmosis
