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प्रश्न
Distinguish between the following:
Plasmolysis and deplasmolysis
उत्तर
| Plasmolysis | deplasmolysis |
| When a cell is placed in hypertonic solution , water begins to pass out of the cell by osmosis with a consequent shrinkage of protoplasm . This phenomenon is called plasmolysis . | When a plasmolysed cell is placed in hypotonic solution or pure water , endosmosis takes place as a result of which water is reabsorbed by the protoplast of the cell and it regains its original position . This phenomenon is called deplasmolysis . |
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संबंधित प्रश्न
Differentiate between Diffusion and Osmosis (Definition)
Name the following:
Movement of molecules from a region of high concentration to a region of low concentration.
Choose the correct answer:
Grapes when placed in a strong sugar solution shrink because of __________
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:
Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.
What is the water potential?
Give Reasons for the following.
Drops of water on a leaf of plant like peepal does not enter the leaf by osmosis?
Differentiate between the following
Endosmosis and Exosmosis
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.
Give Technical Term for the following.
Solutions which have the same osmotic pressure.
Give Technical Term for the following.
The pressure which is responsible for the movement of water molecules across the cortical cells of the root.
