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Define the following term:- (1)diffusion (2) osmosis (3)hypotonic solution (4) hypertonic solution (5) isotonic solution |
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Answer» Diffusion: Some substances like carbon DIOXIDE or oxygen can move across the cell membrane by the process called Diffusion. Osmosis: Osmosis is the passage of water concentration through a selectively permeable membrane to a region of low water concentration TILL equilibrium is reached. HYPOTONIC SOLUTION: If the medium surrounding the cell has a higher water concentration than the cell, meaning that the outside solution is very dilute, the cell will gain water by Osmosis. Such a solution is known as hypotonic solution. Hypertonic solution: If the medium has a lower concentration of water then the cell, meaning that is a very concentrated solution, the cell will lose water by Osmosis. Such a solution is known as a hypertonic solution. Isotonic solution: If the medium has EXACTLY the same water concentration as the cell, there will be no net movement of water across the cell membrane. Such a solution is known as isotonic solution. |
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