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Question
Name the following:
The process by which raisins swell up when placed in a beaker of water.
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Solution
Endosmosis
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RELATED QUESTIONS
Osmosis and diffusion are the same except that osmosis there is:
Name the following:
The condition of a cell placed in a hypotonic solution.
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A&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 had somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the firmness and increase in the size of the potato cubes placed in water.
Name the following:
The inward movement of solvent molecules through the plasma membrane of the cell.
Give Reasons for the following.
The raisins swell up in the water.
Give Reasons for the following.
We gargle with saline water in case of throat infection.
In the figure below ‘A’ shows a cell in the normal state and ‘B’ shows the same cell after leaving it in a certain solution for a few minutes.
(i) Describe the change which has occurred in the cell as seen in B.
(ii) Give the technical term for the condition of the cell as reached in B and as it was in A.
(iii) Define the process which led to this condition.
(iv) What was the solution-isotonic, hypotonic or hypertonic, in which the cell was kept?
(v) How can the cell in B, be brought back to its original condition?
(vi) Name the parts numbered 1 to 3.
