Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
(i) The process of osmosis.
(ii) Osmosis is a special type of diffusion of solvent molecules through a semi-permeable membrane from a region of their higher concentration to the lower concentration region, but not vice versa.
(iii) The level of water in column A will rise along with the passage of time and will ultimately stop when the concentration of water molecules are equal on both sides of the membrane.
(iv) (a) Parchment paper, (b) Egg membrane.
(v) Solution A.
(vi) It permits the movement of only water molecules to pass through it.
APPEARS IN
संबंधित प्रश्न
The most appropriate characteristic of a semipermeable membrane is that
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Define the following:
Osmosis
Define the following:
Diffusion
Define the term:
Plasmolysis
Distinguish between the following:
Plasmolysis and deplasmolysis
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 __________
Choose the correct answer:
If a marine plant is transferred to fresh water, it bursts due to ___________
Give Reasons for the following.
Plants begin to die when the excess of soluble fertilizers are added to the soil?
