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प्रश्न
Osmosis and diffusion are the same except that osmosis there is:
पर्याय
a freely permeable membrane
a cell wall in between
a selectively permeable membrane in between
an endless inflow of water into a cell
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उत्तर
a selectively permeable membrane in between
संबंधित प्रश्न
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with ______.
Give two examples of turgor movements in plants.
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypertonic salt solution
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypotonic salt solution
Define the following:
Diffusion
Distinguish between the following:
Hypotonic and Hypertonic solutions
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
The diagram below represents an experimental set up to demonstrate a vital process. Study the same and then answer the questions that follow:
(i) Name the process.
(ii) Define the above named process.
(iii) What would you observe in the experimental setup after an hour or so?
(iv) What control experiment can be set up for the above experiment?
(v) Keeping in mind the root hair cell and its surrounding name the part that corresponds to (1) Concentrated sugar solution, (2) Parchment paper, (3) Water in the beaker.
(vi) Name any other substance that can be used instead of parchment paper in the above experiment.
(vii) Mention two advantages of this process to the plant.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
During exosmosis, water moves from inside the cell to the outside of the cell.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The plasma membrane permits the passage of all solutes and water.
