transpiration and translocation

• phloem tubes transport food
• xylem tube carries water
• phloem tube transport food in both direction
• the process from the phloem is called translocation
• xylem is made up of dead cells joined end to end and is made from lignin
• xylem tube carry water and mineral ions from root to stem and leaves
• xylem is responsible for transpiration
• transpiration is caused by evaporation and diffusion of water at a plants surface
• transpiration is the loss of water from a plant
• Rate of transpiration

  the warmer it is the greater the transpiration

  the brighter the light the greater the transpiration

  the better the air flow the greater the transpiration

  the drier the air the greater the transpiration