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प्रश्न
Give Reasons for the following.
The raisins swell up in the water.
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उत्तर
The raisins are dry grapes. When these are kept in water, it enters into the raisins by osmosis (endosmosis) and raisins swell up.
संबंधित प्रश्न
Distinguish between the following:
Filtration and diffusion
Name the following:
Two solutions having same concentrations.
Name the following:
The inward movement of solvent molecules through the plasma membrane of the cell.
Choose the correct answer:
Cell turgidity is caused by _______________
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.
What do you mean by transpiration pull ?
Give Reasons for the following.
Plants begin to die when the excess of soluble fertilizers are added to the soil?
Fill in the Blank
A plasmolysed cell has __________ protoplast.
Multiple Choice Question:
Osmosis involves:
Multiple Choice Question:
Plasma membrane controls:
