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Question
Name the following:
Name the process by which water enters the root hair cell.
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Solution
Osmosis
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RELATED QUESTIONS
Differentiate between Diffusion and Osmosis (Definition)
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.
What is the significance of diffusion?
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.
Give Technical Term for the following.
A solution whose concentration is greater than that of the cell sap.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Plasmolysis makes the cell turgid.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cells that have lost their water content are said to be deplasmolysed.
Explain the term:
Diffusion
