Advertisements
Advertisements
प्रश्न
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Advertisements
उत्तर
Potato cubes contain an excess of salts and sugars as compared to the water in which they are placed. Hence, due to endosmosis, water from the surrounding area enters the potato cubes, making them firm and increasing their size.
APPEARS IN
संबंधित प्रश्न
Osmosis and diffusion are the same except that osmosis there is:
Define the following:
Osmosis
Define the following:
Diffusion
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Explain why:
The leaves of wilted lettuce, if kept in cold water, become crisp.
Differentiate between the following
Endosmosis and Exosmosis
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?
Multiple Choice Question:
Osmosis involves:
Explain the Term: Exosmosis
Explain the term:
Plasmolysis
