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प्रश्न
The most appropriate characteristic of a semipermeable membrane is that
पर्याय
it has minute pores
it has no pores
it allows the solute to pass through but not the solvent
it allows a solvent to pass through freely but prevents the passage of the solute
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उत्तर
it allows a solvent to pass through freely but prevents the passage of the solute
संबंधित प्रश्न
Give the appropriate biological or technical term for the following.
Movement of molecules of a substance from their higher concentration to lower concentration when they are in direct contact.
Differentiate between the following on the basis of what is indicated in the bracket.
Hypotonic solution and Hypertonic solution (condition of a plant cell when placed in them).
Give two examples of turgor movements in plants.
Explain how soaked seeds swell up and burst their seed coats.
Define the following:
Hypertonic solution
Explain why:
The leaves of wilted lettuce, if kept in cold water, become crisp.
A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
Comment on the nature (tonicity) of the liquid surrounding the cell.
A plant cell kept in a drop of water was examined under the low power magnification of a microscope, as shown:
(i) What would you do to bring this cell back to its original condition?
(ii) What scientific term is used for such condition?
(iii) Draw the same cell if it is kept in a strong sugar solution.
During a practical exam, a plant cell in a particular solution was placed under a compound microscope. Students were told to observe the cell and name the tonicity of the solution and mention the process that occurred in the cell.
The given statement is incorrect. Rewrite the correct statement:
Fresh water fish when placed in hypertonic salt solution absorb water and burst.
