Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

The diagram illustrates an artificial partially permeable membrane being used to divide a beaker containing a $5\%$ sodium chloride solution from a $10\%$ sodium chloride solution. The two parts of the beaker were marked R and S. Which row gives the correct description of, and reason for, what will happen in the part of the beaker labelled S?

  • Avolume of solution increases; net movement of water from a higher water potential to a lower water potential
  • Bvolume of solution increases; net movement of water from a lower water potential to a higher water potential
  • Cvolume of solution decreases; net movement of water from a higher water potential to a lower water potential
  • Dvolume of solution decreases; net movement of water from a lower water potential to a higher water potential

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