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प्रश्न
Give Reasons for the following.
It is necessary to maintain a normal osmotic concentration of the blood.
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उत्तर
Osmotic pressure is maintained in blood to prevent dehydration leading to shrinkage of cells.
संबंधित प्रश्न
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:
The pressure with which the molecules of a substance diffuse.
Name the following:
Two solutions having same concentrations.
Explain why:
The leaves of wilted lettuce, if kept in cold water, become crisp.
Choose the correct answer:
Cell turgidity is caused by _______________
What is the water potential?
Give Reasons for the following.
Freshwater fish cannot survive in seawater.
Differentiate between:
Osmosis and Diffusion
Fill in the Blank
Raisin swells up when kept in a __________ solution.
Define the following term:
Osmotic Pressure
