Presentation on theme: "A closer look at xylem and phloem"— Presentation transcript:
1A closer look at xylem and phloem Plant TransportationA closer look at xylem and phloem
2Vascular PlantsVascular plants, like celery have a specialized system for transporting water and nutrients through their systems.The stem of a plant has two main ‘highways’ of transportation: xylem and phloem.
3How does a plant transport food, water and nutrients? XylemThe plant cells that move water and nutrients from the roots to the leaves.PhloemThe plant cells that move food from the leaves to the rest of the plant.
4Xylem is in the center Phloem is on the outer edge
5Here you see a longitudinal view of the xylem in celery. Another LookXylemXylemHere you see a longitudinal view of the xylem in celery.
11How does it work? Transpiration 4. H20 Sun/Energy source4.H201. Water is collected by the roots, but how does it get up to the leaves where it is needed?2. As the plant receives sunlight, water in the plant is evaporated and escapes the plant.3. The plant must replace the water. The water that is evaporating at the top creates suction that helps water from the roots climb to the leaves through the xylem.4. Water passes from cell to cell until it gets to where it is needed.2.3.cross sectionview1.H20