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प्रश्न
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उत्तर
| Endosmosis | Exosmosis |
| 1. The process of diffusion of water into the cell from outside is called endosmosis | 1. The diffusion of water from inside to outside of a cell is called exosmosis. |
| 2. It occurs when the cell is placed in a hypotonic solution . | 2. It occurs when the cell is placed in a hypertonic solution. |
APPEARS IN
संबंधित प्रश्न
Name the following:
The condition of a cell placed in a hypotonic solution.
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A&B), the container (A) having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and had somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the firmness and increase in the size of the potato cubes placed in water.
Define the following:
Diffusion
Explain why:
Bacteria and fungi do not grow in pickles, jams, jellies and squashes.
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and B), the container A having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and somewhat decreased in size. Use the above information to answer the questions that follow:
Name and define the physical process being investigated in this experiment.
Give Reasons for the following.
We gargle with saline water in case of throat infection.
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?
Name the following:
The movement of a liquid through a selectively permeable membrane.
Multiple Choice Question:
In the process of osmosis in a cell:
The given statement is incorrect. Rewrite the correct statement:
Fresh water fish when placed in hypertonic salt solution absorb water and burst.
