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

Movement into and out of cells — practice question

Watering crop plants with water that contains low concentrations of salt raises the salt concentration in the soil. Why does this increase in salt concentration eventually kill the crop?

  • Awater potential in roots decreases; direction of water movement into the roots
  • Bwater potential in roots increases; direction of water movement into the soil solution
  • Cwater potential in soil decreases; direction of water movement out of the roots
  • Dwater potential in soil increases; direction of water movement into the roots

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