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Plant Transport

Plant Transport. Nodes: where the leaf meets the stem. Internodes: space between the nodes. Analogy: like your joints. Stem Tissues: An Indepth Look. Plant Transport. Stem Tissues: An Indepth Look. Stem Tissues: An Indepth Look. Xylem + cambium + phloem = vascular bundles.

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Plant Transport

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  1. Plant Transport

  2. Nodes: where the leaf meets the stem. Internodes: space between the nodes. Analogy: like your joints Stem Tissues: An Indepth Look

  3. Plant Transport

  4. Stem Tissues: An Indepth Look

  5. Stem Tissues: An Indepth Look Xylem + cambium + phloem = vascular bundles

  6. Bark cambium: to protect the insides of a tree. Stem Tissues: An Indepth Look

  7. Stem Tissues: An Indepth Look

  8. Questions to Ponder… • Why would girdling, the removal of bark and vascular cambium in a narrow ring all the way around a tree, result in the death of a tree? • If you remove the apical meristem from a dicot plant, what would be the effect on further plant growth? • Of what value are tubers, a type of stem modification, to the survival of a plant species?

  9. Root Tissues: Closer Look Brainstorm: If you were to design the perfect root system for a plant, how might it look like? --spidery for increase surface area --longer, to draw more nutrients and water, more spread out with less competition for resources. --sturdy to survive tough weather

  10. Root Tissues: Closer Look

  11. Root Tissues: Closer Look

  12. Root Tissues: Closer Look

  13. Root Tissues: Closer Look

  14. Root Tissues: Closer Look

  15. Root Tissues: Closer Look Apical meristem

  16. Root Tissues: Closer Look Zone of Maturization

  17. Root Tissues: Closer Look How does water pass through to get into root for transport? Epidermisendodermispericycle or cambium xylem Symplastic Route (class exchange): Apoplactic Route (going through hall ways):

  18. Root Tissues: Closer Look How do ions get into roots?

  19. Root Tissues: Closer Look The Hydrogen Pump • Uses Active transport (ATP) to move the proton (hydrogen ions) from the cytoplasm • To the lysoome (or one area to another) • (2) The protein changes shape to bring H ions through: The protein is conformation A • When it receives an ion. Under ATP, it turns to conformation B to release the ion to the • Other side. http://highered.mcgraw-hill.com/olc/dl/120068/bio05.swf

  20. Modified Root Systems

  21. Plants water and mineral movement Vessel Member Description: dead plant cells One huge tube for water transport Tracheid Description: dead plant cells Separate tubes for separate directly traveling water More water can travel in more places

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