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Plant Structure

Plant Structure. Lab unit 18. Focus on Angiosperms. Three vegetative organs of all flowering plants. Leaves. Stem. Roots. APICAL MERISTEMS. Shoot meristems at microscope 10x. Shoot. Root. root tip at microscope 10x. Major Tissues of vegetative organs. Shoot. Root.

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Plant Structure

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  1. Plant Structure • Lab unit 18 • Focus on Angiosperms

  2. Three vegetative organs of all flowering plants Leaves Stem Roots

  3. APICAL MERISTEMS Shoot meristems at microscope 10x Shoot Root root tip at microscope 10x

  4. Major Tissues of vegetative organs Shoot Root

  5. Most angiosperms belong to one of two major clades. • Monocot • Eudicot

  6. Cotyledon? • Embryonic seed • is the first leaf or set of leaves that sprout from a seed • Store nutrients for the embryo

  7. ROOT SYSTEM

  8. Roots….. Anchor the plant in soil Absorb water and minerals from soil Stores products of photosynthesis

  9. ANATOMY OF A ROOT TIP Zone of Elongation Root Cap

  10. Monocot Vs. Dicot Root Monocot Root Dicot Root

  11. Root Diversity Tap root Fibrous Root

  12. STEM SYSTEM Support

  13. Stem Diversity Pingao (Ficiniaspiralis) spreads by forming stolons in the sand. Ginger (Rhizomes) Tuber Corm

  14. Woody Stems Woody Stems are the stems of plants who have been growing for two years or more.  After two years, a plant's stem thickens to accommodate growth and increased circulation in a plant. example -tree trunk

  15. How old is the tree in the window?

  16. LEAVES

  17. Leaf Anatomy Leaf Anatomy Cuticle Vascular tissue: Xylem Phloem

  18. The organ that produces food for the plant –photosynthesis. • Well adapted for gathering light.

  19. Leaf Diversity

  20. Leaf diversity for us • A simple leaf has a single blade. • A compound leaf has multiple blades (or leaflets) arranged along an axis or radiating from a central point.

  21. UNIT 33 Three types: • Symbiosis is a close and often long-term interactions between different biological species

  22. Parasitisma relationship is one in which one member of the association benefits while the other is harmed

  23. Mutualismis any relationship between individuals of different species where both individuals derive a benefit

  24. Commensalism describes a relationship between two living organisms where one benefits and the other is not significantly harmed or helped Commensalism is difficult to demonstrate, for true commensalism, the second species must be unaffected by the presence of the first

  25. Monocot vs. Dicot leaf Dicot Leaf Monocot Leaf

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