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प्रश्न
Fill in the Blank
Raisin swells up when kept in a __________ solution.
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उत्तर
Raisin swells up when kept in a Hypotonic solution.
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संबंधित प्रश्न
A candidate in order to study the process of osmosis has taken 3 potato cubes and put them in 3 different beakers containing 3 different solutions. After 24 hours, in the first beaker the potato cube increased in size, in the second beaker the potato cube decreased in size and in the third beaker there was no change in the size of the potato cube. The following diagram shows the result of the same experiment:
(i) Give the technical terms of the solutions used in beakers, 1, 2 and 3.
(ii) In beaker 3, the size of the potato cube remains the same. Explain the reason in brief.
(iii) Write the specific feature of the cell sap of root hairs which helps in absorption of water.
(iv) What is osmosis?
(v) How does a cell wall and a cell membrane differ in their permeability?
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
The most appropriate characteristic of a semipermeable membrane is that
Give the equivalent terms for the following:
Pressure of the cell contents on the cell wall
Distinguish between the following:
Turgor pressure and osmotic pressure
Distinguish between the following:
Plasmolysis and deplasmolysis
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.
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.
Give Reasons for the following.
We gargle with saline water in case of throat infection.
Multiple Choice Question:
Plasma membrane controls:
