LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells are normal since this is an isotonic solution.
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Cells become flaccid since this is an isotonic solution.
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Cell become plasmolyzed since this is an isotonic solution.
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Detailed explanation-1: -If the solute concentration outside the cell is lower than inside the cell, and the solutes cannot cross the membrane, then that solution is hypotonic to the cell.
Detailed explanation-2: -Hypertonic-A solution is described as a hypertonic solution to a cell if its solute concentration is higher than inside the cell. Thus, the solute is unable to cross the membrane and stays outside. Hence the net flow of the water too is outwards, where there is more solute, causing the cell to lose volume and shrink.
Detailed explanation-3: -The hypertonic solution is one one side of the membrane and the hypotonic solution on the other. The hypertonic solution has a lower water concentration than the hypotonic solution, so a concentration gradient of water now exists across the membrane.
Detailed explanation-4: -An isotonic solution has the same solute concentration compared to the intracellular solute concentration. When a red blood cell is placed in an isotonic solution, there will be no net movement of water.