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प्रश्न
Multiple Choice Question:
Osmosis involves:
विकल्प
Cell to cell movement of water
Movement of water through cortical cells
Adiva absorption of water through roots
All of the above
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उत्तर
All of the above
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संबंधित प्रश्न
Differentiate between the following pairs on the basis of what is indicated in the brackets.
Hypotonic solution and Hypertonic solution [condition of a plant cell when placed in them]
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples of ______.
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.
Name the following:
Condition of cell in which the cell contents are shrunken.
Name the following:
Movement of molecules from a region of high concentration to a region of low concentration.
Explain why:
The leaves of wilted lettuce, if kept in cold water, become crisp.
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?
Fill in the Blank
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.
Multiple Choice Question:
When a plant wilts, the sequence of events will be as follows:
Explain the Term:
Osmosis
