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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
Choose the correct answer:
Grapes when placed in a strong sugar solution shrink because of __________
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and B), the container A having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the softness and decrease in size of the potato cubes which were placed in sugar solution.
Give at least three uses of water to green plants
Give Reasons for the following.
Plants begin to die when the excess of soluble fertilizers are added to the soil?
Give Technical Term for the following.
A solution whose concentration is greater than that of the cell sap.
Give Technical Term for the following.
The condition in which the water from a cell is completely removed due to exosmosis and no more shrinkage is possible.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Fill in the Blank
When there is no movement of water in the cell from the outside medium, the medium is considered to be ______ to cell sap.
Multiple Choice Question:
Plasma membrane controls:
DPD of a cell can be expressed as ______
