1. Plant Structures and Growth BIOL 1407

3. Root System Environment: Soil Functions: –Anchorage –Absorbs water and minerals –Transport Photo Credit: Rasbak van TeunSpaans, Wikimedia Commons

4. Root Hairs Close to tip of root Extensions of epidermal cells ↑ surface area ↑ absorption

5. Shoot System Environment: Atmosphere Functions: –Photosynthesis –Transport –Support –Reproduction Photo Credit: Doyle Cross, El Yunque Cloud Forest, Puerto Rico 2007

6. Shoot System Organs: –Stems –Leaves –Flowers Photo Credit: Joseph Amana, Biology Student, Lady Bird Johnson Wildflower Center 2005

8. Growth Indeterminate growth  Grow throughout life Primary growth Secondary growth

9. Meristems Growth Zones Apical Meristems –At tips of roots & shoots –Primary Growth

11. Meristems Lateral Meristems –Only in woody plants –Cylinder in mature roots and stems –Secondary Growth Wood Bark

14. Root Tip

15. Dicot Root X-Sec

16. Stele of Dicot Root

18. Shoot Tip

19. Dicot Stem X-Sec

20. Dicot Leaf X-Sec

22. Lower Epidermis of Leaf

23. Vascular Tissue Xylem –Water –Minerals Phloem –Organic compounds

24. Xylem

25. Phloem

26. Plant Videos http://www.youtube.com/watch?v=aNjR4r VA8to&feature=relatedhttp://www.youtube.com/watch?v=aNjR4r VA8to&feature=related Carnivorous Plants: http://www.youtube.com/watch?v=LoLJSMOsPCg http://www.youtube.com/watch?v=LoLJSMOsPCg http://www.youtube.com/watch?v=ktIGVtKdgwo&feature=related http://www.youtube.com/watch?v=trWzDlRvv1M&feature=related

27. The End Unless otherwise specified, all images in this presentation came from: Campbell, et al. 2008. Biology, 8 th ed. Pearson Benjamin Cummings.