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प्रश्न
What is the water potential?
Explain the term:
Water potential
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उत्तर
Water potential is the measure of the tendency of water to move from one region to another, usually from an area of higher water potential to a lower water potential. It indicates the free energy of water in a system.
It is represented by the Greek letter psi (ψ). The unit of measurement of water potential is bars/pascals/atmospheres.
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संबंधित प्रश्न
Osmosis and diffusion are the same except that osmosis there is:
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Addition of salt to pickles prevents growth of bacteria because they turn turgid.
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Diffusion
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Hypotonic and Hypertonic solutions
Name the following:
The pressure with which the molecules of a substance diffuse.
Choose the correct answer:
Osmosis involves diffusion of ___________
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(i) What can you say about the size of the holes in the membrane, if it is to behave semi- permeably between these two?
(ii) Will the solvent molecules pass through the membrane from left to right, from right to left, in either direction or in both directions?
(iii) In which direction will there be a net movement of solvent molecules?
Give Technical Term for the following.
The condition in which the water from a cell is completely removed due to exosmosis and no more shrinkage is possible.
Name the following:
The pressure through which water can rise upto some feet.
Name the following:
Condition of cell in which the cell content are shrunken.
Fill in the Blank
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.
Fill in the Blank
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Multiple Choice Question:
In the process of osmosis in a cell:
Multiple Choice Question:
Marine fish when thrown under tap water bursts because of:
Explain the Term: Exosmosis
Define the following term:
Osmotic Pressure
