Angiosperm pg.2 - cont Biol 17 2 notes(4 root modifications...

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Unformatted text preview: cont Biol 17 2 notes (4) root modifications mary: 1/28/ 2019 ( A. ) all ove the above Tendrils : Function in Support of vines Spires : modified leaves - protection, pervent HIO Loss `Stem takes over rule of' photosynthesis 3 tissue systems:" Dermal - Outermost layer - 1St line of defense 4 epidermis + wax cuticle in non woody Lo bark in woody plants . Ground - tissue beneath dermal vascular - W in ground tiss = HID + food transport System btw root + Shout system . " parenchyma tissue = most abundant tissue - lange vaccle - takes up most of cell _ retains ability to divide + become other cell types . Coll enchyma = elongated my/ thickened uneven cellulose wall - flexible + can grow up plant Lo caus in clusters Ly Provides flexible growth. -- ex: celery plant = ridges are collenchyma cells Syerenchyma: Composed of support cells . thick secondary walls composed of Ligin cells dead at maturity. - Schleras = Short irregular Shaped & cells up long, tapering, overlapping fibers - plastic + alive. ~} Fibers elastic + dead - Lignified cell wall Xylem Hiss = water transport call - traineids = all vas . Plants - all lagging, done function -vessel events -common in thevening plants....
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  • Summer '08
  • Huddleston,M
  • Bacteria, spires

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