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Plants: The Producers

Plants: The Producers. Plants. The plant world is a diverse world. There are plants that trap animals, others that bloom every 30 years, and still others that smell like rotting meat!!!

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Plants: The Producers

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  1. Plants: The Producers

  2. Plants • The plant world is a diverse world. • There are plants that trap animals, others that bloom every 30 years, and still others that smell like rotting meat!!! • Although you probably don’t see these uncommon plants everyday, all plants, the common and the bizarre, all share some common traits.

  3. Eukaryotes • Multicellular • Have cell wall made of cellulose • have chloroplasts • Autotrophs (photosynthesis) • Reproduce asexually or sexually Kingdom: Plants

  4. The Importance of Plants Why are plants important?

  5. The Importance of Plants • Why are plants important? • Plants provide oxygen • Plants provide food • Plants are used in medicines • Plants give us building materials • Plants are used in our clothing • Plants provide fuel • Plants provide us with beauty and pleasure

  6. PLANTS No vascular system Vascular system Mosses, Liverworts, Hornworts Seedless Plants(reproduce by spores) Seed Plants(reproduce by seeds) Ferns, Horsetails, Club Mosses Vascular system = tubes carrying water & sugar throughout the plant, similar to our veins & arteries Gymnosperms(“naked seeds”) Angiosperms(flowers, seeds enclosed in fruit) Conifers Cycads Gingkoes Flowering Plants

  7. How are Plants Classified? Vascular Nonvascular Seeds No seeds (spores) Non-flowering Flowering Moss Angiosperm(seed is inside a fruit) Gymnosperm “naked seed” Ferns

  8. Plant Parts

  9. Flower Structure

  10. Leaf Structure

  11. Leaf Cross-section

  12. Seed coat Seed Embryo Wing Storedfood supply The Anatomy of a Seed B A

  13. Plant Evolution

  14. Plant Diversity Today Cone-bearing plants760 species Floweringplants235,000 species Ferns andtheir relatives11,000 species Mosses andtheir relatives15,600 species

  15. Photosynthesis stays in plant, used for energy & other functions

  16. Stomata allow water and gases to move through the bottom of the leaf Guard cells Guard cells Inner cell wall Inner cell wall Stoma Stoma Open Stoma Closed

  17. Transpiration & Osmosis A B Transpiration: Evaporation of water molecules out of leaves. Osmosis: Pull of water molecules upward from the roots.

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