Transport of materials in flowering plants Chapter 9 Copyright © 2010 All Rights Reserved
Lesson Objectives <ul><li>What are vascular bundles? </li></ul><ul><li>Xylem </li></ul><ul><li>Phloem </li></ul><ul><li>Ca...
Identifying vascular bundles Copyright © 2010 All Rights Reserved
Identifying a vascular bundle xylem phloem Copyright © 2010 All Rights Reserved
Identifying a vascular bundle Copyright © 2010 All Rights Reserved
How to identify xylem vessels from phloem in microscopic slides? <ul><li>Xylem vessels have </li></ul><ul><li>Thicker wall...
A vascular bundle cambium Copyright © 2010 All Rights Reserved
Test Yourself Copyright © 2010 All Rights Reserved
Vascular bundles are arranged in a ring  (roots of monocots) Copyright © 2010 All Rights Reserved
Vascular bundles are scattered throughout  (stems of monocots) Copyright © 2010 All Rights Reserved
Vascular bundles are arranged in a star shape  (roots of dicots) Copyright © 2010 All Rights Reserved Star shape
Vascular bundles are arrange in a ring  (stems of dicots) Copyright © 2010 All Rights Reserved
Monocotyledons vs Dicotyledons Copyright © 2010 All Rights Reserved
Many types of plants Copyright © 2010 All Rights Reserved
Copyright © 2010 All Rights Reserved
Copyright © 2010 All Rights Reserved
Monocots  vs  dicots Copyright © 2010 All Rights Reserved Rose, violet, sunflower, water lily, columbine Grasses, corn, wh...
Vascular bundles arranged in a star shaped Vascular bundles arranged in a ring Copyright © 2010 All Rights Reserved
Vascular bundles are arranged in a ring  Vascular bundles are  scattered throughout  Copyright © 2010 All Rights Reserved
Monocot or dicot? False garlic  - has 6 petals; monocot  Hibiscus  – has 5 petals; dicot  Copyright © 2010 All Rights Rese...
Monocot or dicot? Dicotyledons  - branched veins in the leaf  Monocotyledons  - there are no branched veins (parallel vein...
Orientation of xylem and phloem in the stem, root and leaf of dicotyledonous plants  Copyright © 2010 All Rights Reserved
Transverse section through stem and root Cambium : actively dividing cells between xylem and phloem; unspecialised  Copyri...
Locate the xylem and phloem phloem xylem Copyright © 2010 All Rights Reserved
Locate the xylem and phloem phloem xylem Copyright © 2010 All Rights Reserved
Copyright © 2010 All Rights Reserved
Leaf structure phloem xylem Copyright © 2010 All Rights Reserved
Quiz Copyright © 2010 All Rights Reserved
Fill in the blanks for the table below 1 2 parallel netlike fibrous taproot 3 4/5 ring star-shaped scattered ring Copyrigh...
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Chapter 9 Transport in Plants Lesson 1 - Monocotyledons and dicot

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Chapter 9 Transport in Plants Lesson 1 - Monocotyledons and dicot

  1. 1. Transport of materials in flowering plants Chapter 9 Copyright © 2010 All Rights Reserved
  2. 2. Lesson Objectives <ul><li>What are vascular bundles? </li></ul><ul><li>Xylem </li></ul><ul><li>Phloem </li></ul><ul><li>Cambium </li></ul><ul><li>Identifying vascular bundles in microscopic slides </li></ul><ul><li>Characteristics of Monocots vs Dicots </li></ul><ul><li>Translocation studies </li></ul>Copyright © 2010 All Rights Reserved
  3. 3. Identifying vascular bundles Copyright © 2010 All Rights Reserved
  4. 4. Identifying a vascular bundle xylem phloem Copyright © 2010 All Rights Reserved
  5. 5. Identifying a vascular bundle Copyright © 2010 All Rights Reserved
  6. 6. How to identify xylem vessels from phloem in microscopic slides? <ul><li>Xylem vessels have </li></ul><ul><li>Thicker walls </li></ul><ul><li>- because xylem walls are lignified (either annular, spiral or pitted) to provide mechanical support to the plant </li></ul><ul><li>Larger lumen compared to phloem </li></ul>Copyright © 2010 All Rights Reserved
  7. 7. A vascular bundle cambium Copyright © 2010 All Rights Reserved
  8. 8. Test Yourself Copyright © 2010 All Rights Reserved
  9. 9. Vascular bundles are arranged in a ring (roots of monocots) Copyright © 2010 All Rights Reserved
  10. 10. Vascular bundles are scattered throughout (stems of monocots) Copyright © 2010 All Rights Reserved
  11. 11. Vascular bundles are arranged in a star shape (roots of dicots) Copyright © 2010 All Rights Reserved Star shape
  12. 12. Vascular bundles are arrange in a ring (stems of dicots) Copyright © 2010 All Rights Reserved
  13. 13. Monocotyledons vs Dicotyledons Copyright © 2010 All Rights Reserved
  14. 14. Many types of plants Copyright © 2010 All Rights Reserved
  15. 15. Copyright © 2010 All Rights Reserved
  16. 16. Copyright © 2010 All Rights Reserved
  17. 17. Monocots vs dicots Copyright © 2010 All Rights Reserved Rose, violet, sunflower, water lily, columbine Grasses, corn, wheat, palms, bamboo, lilies, orchids, yucca Example plants Three pores or slits One pore or slit Pollen Grains Multiples of four or five Multiples of three Floral  Parts Veins are usually netlike Veins are usually parallel Leaves Vascular bundles are arranged in a ring Vascular bundles are scattered throughout Stems Vascular bundles are arranged in a star shape Vascular bundles are arranged in a ring Roots One large taproot with little hairs off it Fibrous roots Roots Two Cotyledon One cotyledon (seed leaves) Embryos Dicot Monocot
  18. 18. Vascular bundles arranged in a star shaped Vascular bundles arranged in a ring Copyright © 2010 All Rights Reserved
  19. 19. Vascular bundles are arranged in a ring Vascular bundles are scattered throughout Copyright © 2010 All Rights Reserved
  20. 20. Monocot or dicot? False garlic - has 6 petals; monocot Hibiscus – has 5 petals; dicot Copyright © 2010 All Rights Reserved
  21. 21. Monocot or dicot? Dicotyledons - branched veins in the leaf Monocotyledons - there are no branched veins (parallel veins) Copyright © 2010 All Rights Reserved
  22. 22. Orientation of xylem and phloem in the stem, root and leaf of dicotyledonous plants Copyright © 2010 All Rights Reserved
  23. 23. Transverse section through stem and root Cambium : actively dividing cells between xylem and phloem; unspecialised Copyright © 2010 All Rights Reserved
  24. 24. Locate the xylem and phloem phloem xylem Copyright © 2010 All Rights Reserved
  25. 25. Locate the xylem and phloem phloem xylem Copyright © 2010 All Rights Reserved
  26. 26. Copyright © 2010 All Rights Reserved
  27. 27. Leaf structure phloem xylem Copyright © 2010 All Rights Reserved
  28. 28. Quiz Copyright © 2010 All Rights Reserved
  29. 29. Fill in the blanks for the table below 1 2 parallel netlike fibrous taproot 3 4/5 ring star-shaped scattered ring Copyright © 2010 All Rights Reserved Dicotyledon Monocotyledon Stem Root Arrangement of vascular bundles in Floral parts in multiples of … Type of root system Type of venation on leaves No. of cotyledon (s)

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