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Plantae: Alternation of Generation & Classification Exploration

Explore the unique characteristic of Plantae - alternation of generation, classification into four groups, and divisions/phyla of bryophytes, pteridophytes, and gymnosperms.

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Plantae: Alternation of Generation & Classification Exploration

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  1. 1.0 biodiversitykingdom plantae BY : MDM. NURFAZLINI ISMAIL

  2. 1.1 Domain Eukarya : Kingdom Plantae • Describe alternation of generation as the unique characteristic of Plantae • State the classification of Plantae into four groups • State the classification of bryophytes into three divisions/phyla • State the classification of pteridophytesinto two divisions/phyla • State the classification of gymnosperm into four divisions/phyla

  3. Unique Characteristic of Plantae : Alternation of Generation Occurs in the life of plants, where gametophyte (n) generation alternateswith the sporophyte (2n) generation. Sporophyte generation produce spores by meiosis Gametophyte generation produce gametes by mitosis

  4. H (n) Unique Characteristic of Plantae : Alternation of Generation J I n n n n F G A B C 2n D E (2n)

  5. Gametophyte (n) Unique Characteristic of Plantae : Alternation of Generation Mitosis Mitosis n n n n Spore Gamete MEIOSIS FERTILIZATION Zygote 2n Mitosis Sporophyte (2n)

  6. Pteridophytes Bryophytes

  7. Classification Of Plantae Protected seed Angiosperms Non vascular plants Vascular plants Bryophytes Seed Seedless Pteridophytes Naked seed Gymnosperms

  8. BRYOPHYTES

  9. Sphagnum moss Sanitary napkins made from Sphagnum moss A vial of dried Sphagnum moss would’ve been used for making bandages during WW1

  10. “Tollund Man,” a bog mummy: • The acidic, oxygen poor conditions can preserve bodies.

  11. Classification Of Bryophytes Phylum Hepatophyta Phylum Bryophyta Phylum Anthocerophyta Marchantia sp. Anthoceros sp. Polytrichum sp.

  12. PTERIDOPHYTES

  13. Classification Of Pteridophytes Phylum Lycopodiophyta / Lycophyta Phylum Pteridophyta Dryopteris sp. Lycopodium sp. Selaginella sp.

  14. Pteridophytes : Lycopodiophyta / Lycophyta 2.5cm Isoetes gunnii, a quillwort Strobili (clusters of sporophylls) Selaginellaapoda, a spike moss 1cm Diphasiastrum tristachyum, a club moss

  15. Pteridophytes : Pteridophyta Dryopteris sp. (fern)

  16. GYMNOSPERMS

  17. Classification Of Gymnosperms Cycadophyta Ginkophyta Gnetophyta Pinophyta / Coniferophyta Ginko sp. Cycas sp. Gnetum sp. Pinus sp.

  18. Gymnosperms : Coniferophyta/Pinophyta

  19. Gnetum sp. Gingko sp. Cycas sp.

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