SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A solution more dilute than inside the cell
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A solution more concentrated than inside the cell
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A solution with the same concentration as in the cell
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None of the above
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Detailed explanation-1: -An isotonic solution is one with a salt concentration that is exactly equal to that of blood cells. If the surrounding solution has the same salt concentration as the solution inside the cell, the surrounding solution is referred to as isotonic.
Detailed explanation-2: -When a red blood cell is placed in an isotonic solution, there will be no net movement of water. Both the concentration of solute and water are equal both intracellularly and extracellularly; therefore, there will be no net movement of water towards the solution or the cell.
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.
Detailed explanation-4: -solutions that on either side of a cell membrane are isotonic if the molar concentration of solutes outside the cell is equal to the molar concentration of solutes inside the cell.
Detailed explanation-5: -A solution having the same solute and solvent concentration as a cell across the semipermeable membrane is referred to as isotonic solution.