transpiration and translocation

• What do phloem tubes transport?

  Food
• What are phloem tubes made up off?

  columns of elongated cells with small pores in the end walls to allow cell sap to flow through
• What food does the phloem tube mainly transport?

  sugars
• Where does the phloem tube transport substances to and for what?

  To the rest of the plant for immediate use or storage
• Which direction does the transportation of food in the phloem tube go?

  both directions
• What is the process in the phloem tube where food is transported?

  translocation
• What do xylem tubes do?

  Take water up
• What are xylem tubes made up off?

  dead cells
• What material are xylem tubes strengthened with?

  lignin
• What do xylem tubes carry?

  Water and minerals
• Where do xylem tubes carry water from?

  From roots to the stems and leaves
• What is the movement of water from the roots, through the xylem and out of the leaves called?

  Transpiration stream
• What is the transpiration stream?

  the movement of water from the roots, through the xylem and out of the leaves
• What is transpiration?

  The loss of water from the plant
• What is transpiration caused by?

  The evaporation and diffusion of water from a plants surface
• Where does most transpiration happen?

  At the leaves
• What does the evaporation from translocation cause?

  shortage of water in the leaf
• What is done to solve the problem of shortage of water during translocation?

  water is drawn up from the plant through xylem vessels to replace it
• After xylem vessels draw up more water from the plant what happens?

  There is a constant transpiration stream