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प्रश्न
Define the term:
Plasmolysis
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उत्तर
संबंधित प्रश्न
Differentiate between Turgor pressure and Wall pressure (explain)
A plant cell placed in a certain solution got plasmolysed. What was the kind of solution?
Movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration without the involvement a separating membrane, is called
Osmosis and diffusion are the same except that osmosis there is:
The most appropriate characteristic of a semipermeable membrane is that
Give the equivalent terms for the following:
Pressure of the cell contents on the cell wall
The bending movements of certain flowers towards the sun and the sleep movements of certain plants at night are examples 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.
Name the following:
Condition of cell in which the cell contents are shrunken.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
Choose the correct answer:
Plasmolysis will occur when the cell is placed in a __________
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Plasmolysis is reverse of deplasmolysis.
A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.
What is the significance of diffusion?
Give Reasons for the following.
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered. Why?
The diagram given below is of an experiment just at the start. Study the diagram carefully and answer the following questions :
(i) What does the experiment demonstrate?
(ii) Define, the process demonstrated in the experiment.
(iii) What changes are observed after a few hours?
(iv) Give two examples of a semi-permeable membrane.
(v) Which limb of the U-tube contains a more concentrated sucrose solution, A or B?
(vi) Why is the membrane separating the two solutions labeled as semi-permeable membrane?
A plant cell kept in a drop of water was examined under the low power magnification of a microscope, as shown:
(i) What would you do to bring this cell back to its original condition?
(ii) What scientific term is used for such condition?
(iii) Draw the same cell if it is kept in a strong sugar solution.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
