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प्रश्न
The most appropriate characteristic of a semipermeable membrane is that
विकल्प
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
Name the following:
The condition of a cell placed in a hypotonic solution.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The shrinkage of protoplasm, when a cell is kept in hypotonic solution.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypotonic salt solution
Explain why:
We gargle with saline solution in case of throat infection.
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 Reasons for the following.
Salt and sugar are used in preserving food.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Fill in the Blank
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.
Multiple Choice Question:
Plasma membrane controls:
