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II. Fern

II. Fern. Moss covered forest in New Zealand Wow check this out!  http://video.google.com/videoplay?docid=8558307171261435083. Monophyletic Multicellular eukaryotic Photosynthetic autotrophs Cell walls=cellulose Gametangium = embryophyte .

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II. Fern

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  1. II. Fern Moss covered forest in New Zealand Wow check this out!  http://video.google.com/videoplay?docid=8558307171261435083

  2. Monophyletic • Multicellular eukaryotic • Photosynthetic autotrophs • Cell walls=cellulose • Gametangium = embryophyte What are “plants”? • Starch storage • All have chlorophyll a • all have Chlorophyll b as an accessory pigment • Nearly all are terrestrial

  3. Algae v Plants ? Retention of the zygote (gametangium: antheridium, archegonium) Also, most plants are terrestrial.

  4. Gametophyte (n) is retained within the sporophyte (2n) • Seed replaces the spore • A seed is an embryo packed along with food in a protective coat. • All are heterosporous: (microspores= pollen M. ; megaspores= ovule F. ) • What is different between pollen and sperm? Seed Plants Ch 30

  5. Ch 29-30 PRACTICE QUIZ Moss, ferns, conifers and angiosperms

  6. I. Moss • This pictureshows the mossgametophyte orsporophyte? • The chromosome # is: n or 2n?

  7. I. Moss • Why are moss usually very short? • Why are their reproductive methods considered less adapted to land than the cone-bearing group’s? • A. The (sporophyte or gametophyte) generation is the most dominant phase of the moss life cycle.B. Which phase (sporophyte or gametophyte) contains the archegonia and antheridia?

  8. I. Moss 6. This picture shows vascular tissue. Of the four major groups of plants in ch. 29-30, which groups have vascular tissue? 7. What two types of tissues are there in the vascular bundles?

  9. I. Moss 8. These brown things are the (sporophyte or gametophyte)generation of a moss. 9. They are (n or 2n). 10. Where does meiosis occur (for moss)?

  10. A Peat Bog

  11. II. Fern 11. These structures are called: _____ 12. They are part of the (sporophyte or gametophyte?). 13. The dominant stage in the fern life cycle is the (sporophyte or gametophyte?).

  12. II. Fern • a. When the spores germinate for both the moss and the ferns, a _____ grows.b. Is a fern’s spore a homospore or a heterospore? How can you tell? • Both moss and fern have coating of ________ on their spores. This same coating is on conifer and angiosperm pollen. What is its function? • What are the root-like structures called on the moss? Why aren’t they real roots?

  13. Where does meiosis occur in a fern? • What is special about the fern gametophyte? http://video.google.com/videoplay?docid=-6688095687710215331&q=fractal+fern&total=7&start=0&num=10&so=0&type=search&plindex=2 fern fractal!! New Zealand fern

  14. New Zealand fern

  15. Conifers • Do conifers have alternation of generations? • Do conifers have embryo-phytes? (protected fertilized eggs?)

  16. Conifers and Flowering Plants • What reproductive advancements do conifers have over ferns and mosses? • What reproductive advancements do flowering plants have over conifers?

  17. Can you label all of the parts of a flower?Do you know which are male and which are female?

  18. (Carpel) (style)

  19. BONUS: • What are some problems with life on land? (think of the difficulties that algae might have have on land) • 1. Desiccation (drying out) • 2. Gas exchange • 3. Temperature regulation • 4. Support • 5. Dispersal • 6. Reproduction

  20. Flowers & Fruits of Angiosperms • flower anatomy review • Fruit = ovary, ovules = seeds • Endosperm nutrients (3n) • Angiosperms and animals have shaped one another’s evolution (coevolution) • Humans too! (agriculture)

  21. ]

  22. http://www.country-landscapes.com/ http://www.ithaca.edu/faculty/sallen/CostaRica/CRphoto1.htm

  23. Gymnosperms (“naked seeds”)(conifers, cycads, ginkgo, gnetophytes) • More suited for dry climatesAngiosperms (“container seed”)Flowering Plants • Most diverse and widespread of all plants • Xylem specialized (tracheids, vessel elements) fiber

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