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प्रश्न
Movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration without the involvement a separating membrane, is called
पर्याय
Osmosis
Diffusion
Active transport
Capillarity
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उत्तर
Diffusion
संबंधित प्रश्न
(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.
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.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Choose the correct answer:
Cell turgidity is caused by _______________
Give Reasons for the following.
Drops of water on a leaf of plant like peepal does not enter the leaf by osmosis?
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.
Name the following:
Condition of cell in which the cell content are shrunken.
Name the two organelles in a plant cell that contain their own genetic material and ribosomes.
Define the following term:
Osmotic Pressure
