Transport systems in plants

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  • Transport systems in plants
    • Phloem Tubes: Transport food
      • 1) Made of columns of living cells, with perforated end- plates to allow things to flow through
      • 2) They transport food substances (mainly sugars) both up and down the stem
      • The movement of food substances around the plant is known as transloaction
    • Xylem Vessels: Take Water UP
      • 1) Made of dead cells joined together end to end, with a lumen (hole) down the middle of the tube
      • 3) Thick side walls are made of cellulose, they are strong and stiff which gives the plant extra support
      • 2) They carry water and minerals from the roots up the shoot to the leaves in the transpiration stream

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