Extras for Test Three

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  1. Explain the sterile and fertile stems of Equisetum.
    Horsetail has sterile and fertile stem. The fertile develop before the sterile. But, the sterile are the photosynthetic ones.
  2. Which plant has silica in their epidermis?
  3. How do you distinguish between scouring rushes and horsetails?
    • the degree of branching
    • - if more branched: horsetails
    • - if less branched: scouring rushes
  4. Life cycle of horsetail.
    spores--> gametophyte--> anth and arch--> sperm and one egg--> fertilization--> development of young sporophyte--> mature sporophyte with rhizomes, roots, and strobili ( which has sporangiophore and sporangium)--> meiosis which occurs in the spore mother--> spores
  5. What is the sporangiophore?
    a branch on the strobilus from which the sporangia originate
  6. Uses of horsetails
    • eat
    • water from stems 
    • theory: shoots good for blood
    • diuretic,, antacid,, astringent
    • treats gonorrhea and tuberculosis
    • burned and ashes used for sore moths or burns
  7. Scouring Rushes use
    • scouring and sharpening
    • cleaning pots and pans 
    • polishing brass, hardwood furniture, and flooring and for honing mussel shells to a fine edge
  8. Uses of club mosses
    • used for theatrical explosives and photographic flashlight powders
    • spore powder prevent pills from sticking together
    • treat urinary and stomach problems
    • arrest nosebleeds and staunch hemorrhaging and bleeding
    • reduce fevers
  9. Spike moss uses
    resurrection plant: shrivels and rolls up in a ball when dry but unfolds and turns green when sprinkled with water  (sold)
  10. Uses of quillworts
  11. Lycopodia life history

    Hetero or homo
  12. Selaginella life history

    Hetero or homo
  13. Isoetes life history

    Hetero or homo
  14. Marsilea life history

    Hetero or homo
  15. Lycopodia life cycle

    gametophyte (with arch and anth)

    egg and sperm


    sporophyte development (2n)

    mature sporophyte with strobilus, microphyll, rhizome

    the strobilus has sporangiophores, which produce 8 to 10 sporangia, which undergo mieosis to produce spores
  16. On Lycopodia, what is the sporophyll?
    On the sporophyte are strobili, which are reproductive structures. On teh strobili are modified leaves called sporophylls which have a sporangium that produces sproes
  17. Explain club moss sproes
    they have alot of fat in them

    they have a scar that is reminiscent of meiosis where the other three were formed
  18. Selaginella life cycle
    mature sporophye with microphylls and roots--> stroilus with sporophylls-->

    megasporangium--> megaspores--> megagametophyte-->archegonium--> egg

    microsporangium--> microspores--> microgametophyte--> antheridium--> sperm

    fertilizzation--> young sporophyte--> mature sporophyte
  19. What is selaginella?
    spike moss
  20. Life cycle of Isoetes?
    Sporophyte wth roots and microphyll

    microsores with ligule--> male gametophyte--> antheridium--> sperm (multiflagellated)

    megaspores with ligule--> female gametophyte--> archegonia--> egg--> fertilizaton

    zygote--> young sporophyte
  21. Which plant that we have spoken about has multiflagellated sperm?
  22. What is the function of hte ligule and which plant has it?
    • can be secretory or nutritive
    • movement etc
  23. What is the division of hte lycophytes classified by what?
    lycophytes: have small microphylls that are borne along the stem and grow from an intercalary meristem (1%)

    euphyllophytes: has megaphylls that grow apical meristems 99%
Card Set:
Extras for Test Three
2014-04-14 22:08:50
Plant Kingdom
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