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Question
What is the water potential?
Solution
Water potential is a measure of potential energy of water or the difference in potential energy between a given water sample and pure water.
RELATED QUESTIONS
The most appropriate characteristic of a semipermeable membrane is that
When placed in a more concentrated solution, the cell contents will ______.
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Distinguish between the following:
Hypotonic and Hypertonic solutions
Name the following:
Condition of cell in which the cell contents are shrunken.
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.
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:
Name and define the physical process being investigated in this experiment.
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:
Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.
Define the Cohesive and Adhesive forces.
Give Reasons for the following.
The raisins swell up in the water.
Give Reasons for the following.
Freshwater fish cannot survive in seawater.
A plant cell kept in a drop of water was examined under the low power magnification of a microscope, as shown:
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(ii) What scientific term is used for such condition?
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The movement of a liquid through a selectively permeable membrane.
Name the following:
Condition of cell in which the cell content are shrunken.
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The plasma membrane permits the passage of all solutes and water.
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Explain the Term: Endosmosis
Explain the Term: Plasmolysis
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.
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Osmotic Pressure
