Cellular Osmosis and Isotonic Solutions

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Questions and Answers

What is the primary consequence for a cell placed in an isotonic solution?

  • The cell's volume will remain stable. (correct)
  • The cell will swell and potentially lyse.
  • The cell will eventually shrink due to water loss.
  • The cell will divide into two daughter cells.

What is the essential condition for a solution to be considered isotonic?

  • The solute concentration outside the cell is higher than inside the cell.
  • The solutes can freely cross the membrane.
  • The solute concentration outside the cell is lower than inside the cell.
  • The solute concentration outside the cell is the same as inside the cell. (correct)

What will occur if a cell is placed in a solution where the solute concentration is the same as inside the cell but solutes can cross the membrane?

  • The cell will swell due to water gain.
  • The cell's volume will remain stable. (correct)
  • The cell will shrink due to water loss.
  • The cell will undergo apoptosis.

What is the primary reason a cell in an isotonic solution does not change its volume?

<p>There is no net flow of water into or out of the cell. (C)</p> Signup and view all the answers

What would happen if a cell in an isotonic solution suddenly became permeable to solutes?

<p>The cell's volume would remain stable. (D)</p> Signup and view all the answers

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Study Notes

Isotonic Solution

  • A cell of a muscular well-built adult placed in an isotonic solution will experience no net flow of water into or out of the cell.
  • The cell's volume will remain stable in an isotonic solution.
  • An isotonic solution has the same solute concentration as inside the cell.
  • In an isotonic solution, solutes cannot cross the cell membrane.

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