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प्रश्न
When a cell in solution shrinks and loses its shape, then the solution is ______.
पर्याय
Isotonic
Potable water
Hypotonic
Hypertonic
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उत्तर
When a cell in solution shrinks and loses its shape, then the solution is hypertonic.
Explanation:
The solute concentration in a hypertonic solution exceeds that of cell sap. A cell kept in such a solution shrinks and loses water that moves out of it.
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.
Differentiate between the following:
Plasmolysis and deplasmolysis
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
In the figure below ‘A’ shows a cell in the normal state and ‘B’ shows the same cell after leaving it in a certain solution for a few minutes.
(i) Describe the change which has occurred in the cell as seen in B.
(ii) Give the technical term for the condition of the cell as reached in B and as it was in A.
(iii) Define the process which led to this condition.
(iv) What was the solution-isotonic, hypotonic or hypertonic, in which the cell was kept?
(v) How can the cell in B, be brought back to its original condition?
(vi) Name the parts numbered 1 to 3.
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 pressure which is responsible for the movement of water molecules across the cortical cells of the root.
Name the following:
The pressure through which water can rise upto some feet.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
Name the two organelles in a plant cell that contain their own genetic material and ribosomes.
