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Plant tissues

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  • 1. Photomicrographs Plant Tissues
  • 2. BOTANY     Algae Cladophora species Filament in form Several cells
  • 3. BOTANY    Algae Acetabularia species Many cells
  • 4. BOTANY   Algae Oedogonium species
  • 5. BOTANY   Algae Spirogyra species
  • 6. BOTANY    Spirogyra species Filamentous algae Conjugation (sexual reproduction) Phase contrast photo
  • 7. BOTANY      Algae Spirogyra species Filament in form Spores: union of 2 cells Bridge
  • 8. BOTANY   Algae filament
  • 9. BOTANY    Algae Chara species Many cells
  • 10. BOTANY    Algae Chlamydomonas sp. One cell
  • 11. BOTANY    Algae Euglena gracilis One cell with flagella
  • 12. BOTANY     Algae Oscillatoria species Filament in form Series of cells
  • 13. BOTANY    Algae Ulothrix species Many cells in filament
  • 14. BOTANY     Algae Volvox species Hundreds of cells in hollow sphere Cells have flagella Spirogyra species
  • 15. BOTANY    Green algae Pediastrum species Group of cells
  • 16. BOTANY    Oscillatoria species Algae Many cells
  • 17. BOTANY ANGIOSPERMS ROOTS
  • 18. BOTANY       ANGIOSPERMS Dicot root Cross section Center of root Xylem form “X” Phloem at tip of xylem
  • 19. BOTANY    Salix root, x.s. Low magnification Vascular bundle
  • 20. BOTANY    Ranunculus root, x.s. Low magnification Vascular bundle
  • 21. BOTANY ANGIOSPERMS STEMS
  • 22. BOTANY     ANGIOSPERMS Stem Arrangement of bundles Low magnification
  • 23. BOTANY      ANGIOSPERMS Bundle in stem Phloem (top) Cambium (middle) Xylem (bottom) (which is interior)
  • 24. BOTANY     ANGIOSPERMS Growth ring (xylem) Tilia stem Basswood tree
  • 25. BOTANY      ANGIOSPERMS Coleus stem Cross section of bundle Xylem -- inside Phloem -- outside
  • 26. BOTANY   Medicago stem, x.s. Vascular bundles in ring
  • 27. BOTANY   Soft tissue   ANGIOSPERMS Stem, composite Cross section Low magnification
  • 28. BOTANY     ANGIOSPERMS Cells in stem Thickened xylem Cross section
  • 29. BOTANY   Bamboo stem Cross section
  • 30. BOTANY      ANGIOSPERMS Xylem cells in stem Longitudinal section Annular rings (left) Spiral rings (right) Rings reinforce the cell wall.
  • 31. BOTANY   Tilia, 3-year stem, x.s. Bark
  • 32. BOTANY  Tilia stem, 3-year, x.s.
  • 33. BOTANY ANGIOSPERMS LEAF
  • 34. BOTANY     Castalia leaf Cross section Floating water plant Air spaces
  • 35. BOTANY     Begonia leaf Cross section Air space Guard cells (stomata)
  • 36. BOTANY    ANGIOSPERMS Leaf Surface view Low magnification (about 50X) Notice the chloroplasts
  • 37. BOTANY  Mangrove leaf, x.s. Low magnification  Phase contrast photo 
  • 38. BOTANY     Mangrove leaf, x.s. Through central vein Phloem Xylem Phase contrast photo
  • 39. BOTANY   Mangrove leaf, x.s. Section through small vein Phase contrast photo
  • 40. BOTANY   Syringa leaf, x.s. Low magnification
  • 41. BOTANY   Zea mays leaf, x.s. Leaf vein
  • 42. BOTANY  Oleander leaf, x.s. Pit to reduce water loss  Phase contrast photo 
  • 43. BOTANY  Elodea meristem (rapidly dividing cell region)  Longitudinal section, l.s.
  • 44. BOTANY ANGIOSPERMS FLOWER
  • 45. BOTANY    Lotus bud, l.s. Base (peduncle) Flower
  • 46. BOTANY Flower petals
  • 47. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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