Transportation in pnat cells

• What are the two types of plant transport?


  Translocation and transpiration
• What is translocation?

  Phloem cells. Transports sugars from leaves to rest of plant after photosynthesis
• What is transpiration?

  Xylem cells. Transports water molecules from the roots to the leaves. Undergos evapouration of water molecules from stomata
• What affects the rate of transpiration
• What affects the rate of transpiration?

  Light intensity, temperature, humdity and air flow
• How does light intensity affect the rate of transiration?

  More light- Stomata open more- More evapouration of water molecules- increases rate
• How does temperature affect the rate of transpiration?

  Higher temp- More energy to water molecules- More evapouration- Increases rate
• How does the humidity affect the rate of transpiration?

  Higher humidity- lower conc gradient- Less evapouration- lower rate
• How does air flow affect the rate of transpiration?

  Higher air flow- higher conc gradient- more evapouration- higher rate
• What is a transpiration chain?


  A chain of water molecules within a xylem tube
• Phloem tube?


  Translocation. transporting sugars to rest of plant. can go both directions. made up of multiple phloem cells.
• What adaption does a phloem tube have?

  Pores- allows cell sap to get through
• What is cell sap?


  liquid mixture of sugars and water molecules
• What happens after translocation?

  Sugars used directly for energy or stored