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प्रश्न
Define the following:
Diffusion
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उत्तर
Diffusion - It is the movement of molecules or ions from a region of higher concentration to a region of lower concentration to equalize the concentration of the two regions.
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संबंधित प्रश्न
The highest water potential (capacity to move out higher concentrated solution) is that of ______.
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Give two examples of turgor movements in plants.
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
Define the following:
Osmosis
Distinguish between the following:
Plasmolysis and deplasmolysis
Choose the correct answer:
Osmosis involves diffusion of ___________
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.
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.
