OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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into, swell
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out of, shrivel
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in and out of the cell, stay the same
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None of the above
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Detailed explanation-1: -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.
Detailed explanation-2: -So if a cell is kept in an isotonic solution, then the net movement of water across the cell will be zero. Hence, the water potential and the solute potential will be equal since, water potential is equal to solute potential at normal temperature and atmospheric pressure.
Detailed explanation-3: -Solutions that contain the same concentration of water and solutes as the cell cytoplasm are called isotonic solutions. Cells placed in an isotonic solution will neither shrink nor swell since there is no net gain or loss of water.