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Answer» (i) Exosmosis and Endosmosis. | S.No. | Endosmosis | Endosmosis | | (i) | It is the movement of water molecules from the cell to the exterior. | It is the movement of water molecules into the cell from outside. | | (ii) | It takes place when a cell is placed in a hypertonic solution. | It takes place when a cell is placed in a hypotonic solution. | | (iii) | Turgor pressure on the cell wall decreases, e.g., crenation of RBCs when kept in concentrated sugar solution. | Turgor pressure on the cell wall increases, e.g., swelling of raisins when placed in water. |
(ii) Plasmolysis and Deplasmolysis. | S.No. | Plasmolysis | Deplasmolysis | | (i) | It is the shrinkage of the protoplast of the cell from its cell wall. | It is the It is the swelling of the cytoplasm of a plasmolyzed cell. | | (ii) | It takes place when a cell is placed in a hypertonic solution. | It takes place when a cell is placed in a hypotonic solution. | | (iii) | It takes place due to exosmosis e.g., when grapes are placed in honey. | It takes place due to endosmosis. e.g., swelling of raisins when placed in water |
(iii) Active and Passive Transport. | S.No. | Active Transport | Passive Transport | | (i) | This is a rapid process. | This is a slow process. | | (ii) | Energy is needed. | No need of energy. | | (iii) | It is a vital process. | It is a physical process. | | (iv) | Movement in one direction only. | Movement in both direction. | | (v) | Requires carrier proteins. | Does not require carrier proteins. | | (vi) | Movement of metabolites against concentration gradient. | Movement of metabolites along concentration gradient. |
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