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Plants

Plants. Chapters 22-25. Plant Overview. Domain: Kingdom: Uni , multi, both: Auto, hetero, both: Cell wall material: Examples:. Plant survival skills. Photosynthesis! Formula:. Plant Survival Skills. Water and minerals. Plant Survival Skills. Gas exchange. Plant Survival Skills.

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Plants

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  1. Plants Chapters 22-25

  2. Plant Overview • Domain: • Kingdom: • Uni, multi, both: • Auto, hetero, both: • Cell wall material: • Examples:

  3. Plant survival skills • Photosynthesis! • Formula:

  4. Plant Survival Skills • Water and minerals

  5. Plant Survival Skills • Gas exchange

  6. Plant Survival Skills • Movement of water and nutrients

  7. Plant evolution • Started in the water • Evolutionary trend • Ancestors?

  8. Plant classification • Bryophytes • Trachophytes (Vascular non-seeded plants) • Vascular seeded plants • Gymnosperms • Angiosperms

  9. Bryophytes • Tied to water

  10. Vascular non-seeded plants • Advantages • Limitations

  11. Vascular seeded plants • Advantages • Gymnosperms • Angiosperms

  12. Gymnosperms • Cone bearers • Literal name • Seed dispersal • Examples

  13. Angiosperms • Flowering plants • Literal Name • Seed dispersal • Examples

  14. Function of Floral Structures Stigma: part of the pistil that receives the pollen (is sticky). Style: central part of the pistil. Ovary: lower part of the pistil which produces eggs or ovules. Becomes a fruit Pistil: the set of female parts of a flower. Receptacle: part of the flower to which the other parts are attached. Pedicel: the stalk supporting the flower. Sepal: Protects the developing flower bud. Petals: each parts of the corolla of a flower. For insect attraction & protects Stamen: male reproductive organ of a flower. Anther: part of the stamen that produces the pollen. Held up by the filament

  15. Angiosperm reproduction

  16. Pollination v. fertilization • Similar, but key differences Pollination Fertilization

  17. Seeds

  18. Micropyle • Seed Coat • Hilum – Point of attachment in fruit • Cotyledon - Food • Radicle – Embryonic root • Epicotyl – Embryonic Leaves • Hypocotyl – Embryonic Stem • Micropyle –point where sperm cell entered into Ovule

  19. Seeded Plant Structures • Roots

  20. Seeded Plant Structures • Stems

  21. Seeded Plant Structures • Leaves Guard Cells

  22. Seeded Plant Structures • Flowers

  23. Plant Growth • Apical Meristem • Vascular cambium

  24. Age of a Tree

  25. Plant Responses • Tropism – A plant’s movement in response to a stimulus • Phototropism • Thigmotropism • Gravitropism Seeds grown on earth & space

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