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प्रश्न
Define the following:
Diffusion
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
Differentiate between Turgor pressure and Wall pressure (explain)
The highest water potential (capacity to move out higher concentrated solution) is that of ______.
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 ______.
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
Hypertonic salt solution
Differentiate between the following
Endosmosis and Exosmosis
The beaker is divided into two chambers A and B. The big circle represents solute and the small circles solvent.
(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.
Solutions which have the same osmotic pressure.
Name the following:
The pressure through which water can rise upto some feet.
