xylem and phloem

• Xylem


  Vascular tissue responsible for distributing water and minerals taken by the roots
• Xylem

  • Tracheids are long hollow and elongated. It conducts water.
  • Fiber cells function mainly as supporting structures
  • Parenchyma are the only living cells of the xylem, help with food storage
• Phloem


  Vascular tissue that transports manufactured food
• 
  

  • Sieve tube consists of a single row of elongated, thin-walled cells with walls perforated by minute pores
  • Companion cell has abundant cytoplasm and nucleus, and an extremely thin but flexible cell wall
  • Fiber cells help provide structural support, and parenchyma stores food and other substances
  • Fiber cells in phloem are the only type of cell that is dead