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प्रश्न
Differentiate between:
Osmosis and Diffusion
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उत्तर
| Osmosis | Diffusion |
| Osmosis is a special type of diffusion which involves the movement of solvent molecules from a region of their higher concentration to a region of their lower concentration through a semi-permeable membrane. | Diffusion is the movement of solute molecules or ions from a region of their higher concentration to a region of their lower concentration without the influence of a semi-permeable membrane. |
संबंधित प्रश्न
A candidate in order to study the process of osmosis has taken 3 potato cubes and put them in 3 different beakers containing 3 different solutions. After 24 hours, in the first beaker the potato cube increased in size, in the second beaker the potato cube decreased in size and in the third beaker there was no change in the size of the potato cube. The following diagram shows the result of the same experiment:
(i) Give the technical terms of the solutions used in beakers, 1, 2 and 3.
(ii) In beaker 3, the size of the potato cube remains the same. Explain the reason in brief.
(iii) Write the specific feature of the cell sap of root hairs which helps in absorption of water.
(iv) What is osmosis?
(v) How does a cell wall and a cell membrane differ in their permeability?
Differentiate between the following:
Plasmolysis and deplasmolysis
Give two examples of turgor movements in plants.
Define the following:
Hypertonic solution
Distinguish between the following:
Turgor pressure and osmotic pressure
What is the water potential?
Fill in the Blank
Raisin swells up when kept in a __________ solution.
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.
Name the two organelles in a plant cell that contain their own genetic material and ribosomes.
