Advertisements
Advertisements
प्रश्न
Show by a series of diagrams, the change which a plant cell will undergo when placed in
Hypotonic salt solution
Advertisements
उत्तर
संबंधित प्रश्न
Differentiate between the following:
Plasmolysis and deplasmolysis
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
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.
Distinguish between the following:
Hypotonic and Hypertonic solutions
Choose the correct answer:
Osmosis involves diffusion of ___________
Give Reasons for the following.
It is necessary to maintain a normal osmotic concentration of the blood.
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 Blanks
Diffusion is the movement of molecules from a region of their ________ concentration to the region of their ________ concentration.
Explain the term:
Plasmolysis
