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प्रश्न
When a cell in solution shrinks and loses its shape, then the solution is ______.
विकल्प
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
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.
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Explain why:
The leaves of wilted lettuce, if kept in cold water, become crisp.
Choose the correct answer:
If a marine plant is transferred to fresh water, it bursts due to ___________
Give Reasons for the following.
It is necessary to maintain a normal osmotic concentration of the blood.
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.
A plant cell kept in a drop of water was examined under the low power magnification of a microscope, as shown:
(i) What would you do to bring this cell back to its original condition?
(ii) What scientific term is used for such condition?
(iii) Draw the same cell if it is kept in a strong sugar solution.
Explain the Term: Exosmosis
