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Question
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.
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Solution
The process being investigated is osmosis. Osmosis is the diffusion of water molecules across a semi-permeable membrane from a more dilute solution (with a lower solute concentration) to a less dilute solution (with a higher solute concentration).
RELATED QUESTIONS
Differentiate between Turgor pressure and Wall pressure (explain)
Distinguish between the following:
Hypotonic and Hypertonic solutions
Give Technical Term for the following.
A solution whose concentration is greater than that of the cell sap.
Name the following:
The movement of a liquid through a selectively permeable membrane.
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:
In the process of osmosis in a cell:
DPD of a cell can be expressed as ______
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.
The given statement is incorrect. Rewrite the correct statement:
Fresh water fish when placed in hypertonic salt solution absorb water and burst.
