Transport Systems in Plants

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Phloem Tubes

  • Transports food
  • Made of columns of living cells
  • Perforated end-plates allow movement of food
  • Transports mainly sugar up and down stem to growing and storage tissues
  • Movement is known as TRANSLOCATION
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Xylem Vessels

  • Takes water up
  • Made of dead cells joined together
  • No end walls and a lumen in the middle
  • Thick side walls are made of cellulose - gives support
  • Carries water and minerals from the roots to the TRANSPIRATION STREAM
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