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प्रश्न
Define the term:
Plasmolysis
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उत्तर
संबंधित प्रश्न
Give the equivalent terms for the following:
Pressure of the cell contents on the cell wall
When placed in a more concentrated solution, the cell contents will ______.
(a) Mention whether the following statement is true (True) or false (False)
(b) Correct the false statement by altering the last word only.
A plant cell placed in hypotonic solution gets Plasmolysed.
Explain how soaked seeds swell up and burst their seed coats.
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
The diagram given below represents an experimental set-up to demonstrate a certain process. Study the same and answer the questions that follow:
- Name the process.
- Define the above-named process.
- What would you observe in the experimental set-up after an hour or so?
- What control experiment can be set up for comparison?
- Keeping in mind the root hair, cell and its surroundings, name the parts that correspond to
- concentrated sugar solution
- parchment paper
- water in the beaker
- Name any other material that can be used instead of parchment paper in the above experiment.
- Mention two advantages of the process for the plants.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypotonic salt solution
Name the following:
The inward movement of solvent molecules through the plasma membrane of the cell.
Choose the correct answer:
Plasmolysis will occur when the cell is placed in a __________
Choose the correct answer:
Cell turgidity is caused by _______________
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.
Give Reasons for the following.
Drops of water on a leaf of plant like peepal does not enter the leaf by osmosis?
Give a diagrammatic representation of plasmolysis in a cell.
Name the following:
Name the process by which water enters the root hair cell.
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 Blanks
Diffusion is the movement of molecules from a region of their ________ concentration to the region of their ________ concentration.
Explain the Term: Endosmosis
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.
