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

Movement into and out of cells — practice question

Land covered by seawater flooding is not appropriate for plant growth after the salty flood water has drained away. Which water-potential values in the xylem and in the soil water help to explain why land flooded with salty water is unsuitable for plant growth?

  • Axylem: $-1800\,\text{kPa}$, soil water: $-700\,\text{kPa}$
  • Bxylem: $-700\,\text{kPa}$, soil water: $-1800\,\text{kPa}$
  • Cxylem: $-700\,\text{kPa}$, soil water: $-300\,\text{kPa}$
  • Dxylem: $0\,\text{kPa}$, soil water: $-1800\,\text{kPa}$

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