Seed Plants/Seedless Plants (BIO LAB)

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Author:
amerelman
ID:
297665
Filename:
Seed Plants/Seedless Plants (BIO LAB)
Updated:
2015-03-08 23:59:52
Tags:
plants
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plants
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  1. Non-vascular
    Bryophytes (mosses)
  2. Vascular Plants-Seedless
    Pterophyta (ferns)
  3. Vascular Plants-Seeded
    • Gymnosperms
    • -Coniferophyta (conifers)
    • -Cycadophyta
    • -Ginkgophyta
    • -Gnetophyta

    • Angiosperms
    • -Anthophyta
  4. Plant Life Cycle
    • Alternation of generations
    • -Haploid gametophyte generation
    • -Diploid sporophyte generation
  5. Division Bryophyta (mosses)
    • Appeared 400 million years ago
    • Gametophyte dominant stage
    • Contain no vascular tissue
    • Motile sperm require water for fertilization
    • (green=gametophyte, orange=sporophyte)
  6. Bryophyta Life Cycle
    • Spores via meiosis
    • Gametophyte via mitosis
    • Mitosis within the gametophyte produces gametes
    • Fusion of gametes produces zygote (2n)
    • Zygote grows into sporophyte and spores are produced in sporangium
    • -Sporophyte stage (diploid)
    • -Gametophyte stage (haploid)
  7. Division Pterophyta (ferns)
    • Sporophyte dominant stage
    • Contain vascular tissue
    • Contain stomata and structural support
  8. Pterophyta Life Cycle
    • Depend on water for fertilization
    • Haploid stage (gametophyte)
    • -Independent of sporophyte
    • Fertilization
    • Diploid stage (sporophyte)
    • Sori: cluster of sporangia
  9. Gymnosperms
    • Lack enclosed chambers for development
    • Appeared long before flowering plants
    • Reduced gametophyte and internal fertilization
    • Wind pollination
    • Sporophyte embryo develops within gametophyte tissue
    • Have advanced vascular tissue
  10. Gymnosperm Divisions
    • -Cycadophyta
    • -Gnetophyta
    • -Ginkiphyta
    • -Coniferophyta
  11. Coniferophyta (Conifers)
    • Gymnosperms
    • Most are evergreens
    • Some of tallest/oldest living organisms
    • Needles are adaptation to dry environment
    • Most lumber from cnifers
    • Examples: pines, furs, cedars, redwoods, spruces
  12. Angiosperms (flowering plants)
    • Can go from seed to seed in 1 year
    • More advanced vascular tissue
    • Internal fertilization via pollen grain
  13. Angiosperm Classification
    • One Division: anthophyta
    • Classes:
    • -monocotyledon(corn)
    • -dicotyledon (maple tree)

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