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Moss & Fern

Moss & Fern. Headings Vocab Important Info. Vascular & Nonvascular Plants. 2. Vascular A. Plants which contain vessels for transport B. Xylem - vessels transporting water & minerals up to leaves C. Phloem - vessel transporting sugar down to roots D. Example- Flowers, Trees.

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Moss & Fern

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  1. Moss & Fern Headings Vocab Important Info

  2. Vascular & Nonvascular Plants 2. Vascular A. Plants which contain vessels for transport B. Xylem- vessels transporting water & minerals up to leaves C. Phloem- vessel transporting sugar down to roots D. Example-Flowers, Trees 1. Nonvascular • Plants withoutvessels for water & mineral transport • Example-Mosses

  3. Bryophytes • Nonvascular plants-Moss • Small, soft plants which grow in clumps • Absorbs water like a sponge • Live in moist, shaded areas • Height b/t 1-2 cm • Pioneer plants: break down rock

  4. LIFE CYCLE • Reproduction: a. Alternate Generations: have 2 body forms in life cycle b. Gametophyte- body form which produces gametes c. Sporophyte- form which produces spores, grows from gametophyte capsule sporophyte stalk Stemlikestructure gametophyte Leaflike structure

  5. 2. Steps in Reproductive Cycle • Spore germinate & form gametophyte generation • Antheridium- forms male gametes(sperm) • Archegonium- forms female gametes(egg) • Sperm fertilizes egg & zygote is formed • Zygote divides and forms sporophtye

  6. Protonema(young gametophyte)(N) Spores(N) Malegametophyte Femalegametophyte Maturesporophyte(2N) Capsule(sporangium) Antheridia Sperm(N) Archegonia Gametophyte(N) Youngsporophyte(2N) Zygote(2N) Sperm(N) Gametophyte(N) Egg(N) Left Page (draw later) Figure 22–11 Page 558  The Life Cycle of a Moss Haploid (N) Diploid (2N) MEIOSIS FERTILIZATION

  7. Seedless Plants • Vascular plants- have xylem & phloem • Live in moist, fertile shaded areas • Form fronds (large leaves) leaves • Produce spores instead of seeds Fiddlehead-young fern frond

  8. 5. Reproduction: • Alternate Generations • sporophyte & gametophyte are independent • spores released, germinate to form heart-shaped gametophyte called Prothallus d. Prothallus prod. both Antheridium & Archegonium e. Sperm released & swims through water & fertilizes egg f. Zygote is formed & dev. in Sporophyte

  9. Left Page (draw later) Figure 22–17 Page 563  The Life Cycle of a Fern MEIOSIS Sporangium(2N) Haploid gametophyte (N) Diploid sporophyte (2N) Frond Younggametophyte(N) Spores(N) Maturesporophyte(2N) Developingsporophyte(2N) Maturegametophyte(N) Antheridium Sperm Gametophyte(N) Egg Sporophyteembryo(2N) Archegonium FERTILIZATION

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