transport in plants

• What is the function of the epidermis?


  It covers the outer surfaces of the plant for protection
• What is the function of the palisade mesophyll?


  The main site of photosynthesis in the leaf
• What is the function of the spongy mesophyll?


  Where the air spaces between the cells allows gases to diffuse through the leaf
• What if the function of the xylem vessels?


  Transports water and minerals through the plant, from roots to leaves. Also supports the plant
• What is the function of the phloem vessels?


  Transports dissolved food materials through the plant
• What is the function of the meristem tissue?


  Found mainly at the tips of the roots and shoots, where it can produce new cells for growth
• What is the definition of transpiration?


  The loss of water through leaves
• What are the factors that effect the rate of transpiration?


  Temperature, air flow, light intensity and humidity
• What is the role of the guard cells?


  To open and close the stomata
• How do you calculate the rate of transpiration?


  measuring the rate at which the shoot takes up water
• What is translocation?


  phloem tissues transports dissolved sugars from the leaves to the rest of the plants