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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
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ______.
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
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Give Reasons for the following.
The raisins swell up in the water.
Give Reasons for the following.
Freshwater fish cannot survive in seawater.
Give Reasons for the following.
Plants begin to die when the excess of soluble fertilizers are added to the soil?
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cells that have lost their water content are said to be deplasmolysed.
Multiple Choice Question:
Marine fish when thrown under tap water bursts because of:
