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प्रश्न
Distinguish between the following:
Filtration and diffusion
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उत्तर
Filtration and diffusion
| Filtration | diffusion |
| Filtration is the mechanical separation of a liquid from the undissolved particles floating on it . | Diffusion is the movement of substances from an area of higher concentration to an area of lower concentration . |
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संबंधित प्रश्न
Differentiate between Turgor pressure and Wall pressure (explain)
Differentiate between the following:
Plasmolysis and deplasmolysis
Give two examples of turgor movements in plants.
The following diagram represents a plant cell after being placed in a strong sugar solution.
Guidelines 1 to 5 indicate the following
(1)Cell wall, (2) Strong sugar solution, (3) Protoplasm (4) Large vacuole, (5) Nucleus
(1)What is the state of the cell shown in the cell shown in the diagram?
(2)Name the structure which acts as a selectively permeable membrane.
(3)If the cell had been placed in distilled water instead of strong sugar solution, which feature would not have been seen?
(4)Name any one feature of this plant cell which is not present in an animal cell.
Define the following:
Hypertonic solution
Choose the correct answer:
Osmosis involves diffusion of ___________
Give Reasons for the following.
On sprinkling common salt on grass growing in a lawn, the grass is killed.
Give Reasons for the following.
We gargle with saline water in case of throat infection.
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.
When a cell in solution shrinks and loses its shape, then the solution is ______.
