Biology 9700 · AS & A Level · Structure of transport tissues

Structure of transport tissues — practice question

Which substances in xylem tissue are not permeable to water and stop the vessels from collapsing?

  • Aimpermeable to water: cellulose; prevent collapse: cellulose only
  • Bimpermeable to water: cellulose; prevent collapse: lignin only
  • Cimpermeable to water: lignin; prevent collapse: cellulose only
  • Dimpermeable to water: lignin; prevent collapse: cellulose and lignin

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