Difference Between Endosmosis And Exosmosis: Endosmosis and exosmosis are two different types of osmosis. The fundamental distinction is in their directionality: endosmosis involves the inward movement of water within the cell, whereas exosmosis involves the outward expulsion of water from it. The terms hypertonic, hypotonic, and isotonic solutions aid in the understanding of these processes. In a hypertonic solution, the solvent has a higher solute concentration than the cell, making the cell hypotonic to the solvent, whereas in a hypotonic solution, the cell sap has a lower solute concentration than the solvent, making the cell hypertonic to the solution. The solution and the cell sap are isotonic when the solute concentrations are equal.
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Endosmosis occurs when cells are immersed in hypotonic solutions, which causes cell expansion. Exosmosis occurs when cells are exposed to hypertonic solutions, causing them to shrink. Isotonic solutions do not promote exosmosis or endosmosis. Refer to the article below for mor e details on the difference between endosmosis and exosmosis.
Difference Between Endosmosis And Exosmosis | ||
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Aspect | Endosmosis | Exosmosis |
Definition | Movement of molecules from high to low concentration | Movement of molecules from low to high concentration |
Examples | Nutrient and water intake by plant cells | Release of waste products from plant cells |
Mechanism | Driven by concentration gradient across membrane | Driven by pressure differential across membrane |
Significance | Allows cells to absorb nutrients and water | Facilitates elimination of waste products from cells |
Consequences | Risk of cell enlargement or bursting in excess | Beneficial for toxin removal in excess |
Effect on Water | Decreases water potential | Increases water potential |
Solution | Hypotonic solution | Hypertonic solution |
Solvent Movement | Enters the cell | Exits the cell |
Required Solution | Hypotonic | Hypertonic |
Osmotic Pressure | Pulls water into the cell | Pushes water out of the cell |