Plant Transport Systems

• What does the phloem transport?

  Food (i.e. dissolved sugars)
• Are the columns of phloem cells living or dead?

  Living
• What are the perforated end plates called?


  sieve tube elements (sieve plates)
• What does each sieve plate have that allows them to get things they need to survive?

  Companion cells
• What direction does phloem transport things in?

  Up and down
• What is the process of transporting sugars called?

  Translocation
• What does the xylem transport?

  Water and mineral ions
• Are xylem cells living or dead?

  Dead
• Do xylem cells have end walls?

  No
• What materials are the cell walls made from (xylem)?

  Cellulose and lignin
• What do these materials give the cells in the xylem?

  Structure and support