Descended from unicellular amoeba like organisms

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Descended from unicellular amoeba-like organisms Plasmodial slime molds and Cellular slime molds Vegetative state = plasmodium Multinucleate mass of protoplasm (no cell walls) Feeds on bacteria of moist logs or leaves Can be converted to reproductive structures called fruiting bodies o Produce spores Rhodophyta (Red Algae) o Autotrophic w/ phycocyanin pigments & phycoerythrin that mask chlorophyll (so red) o Agar: polysaccharide extracted from cell wall of red algae o Carragenan : another cell wall extract, used to texture and enrichen foods (dairy/soup) In Asia nori are used as seaweed wrappers for sushi (billion dollar industry) Chlorophyta (Green Algae) o "The Protist-Plant Connection" o Unicell, motile/nonmotile,{ colonial, filamentous, and multicelluar species }, freshwater o Share characteristics with land plants: Amylose (starch) storage, cholorphylls a/b, photosynthetic paths, flavonoids ***Plants probably evolved from green algae*** Ribosomal and tRNA studies confirm the connections o Chara (stonewart) = multicellular branched green algae, most similar to 475 mya Also look at multicellular Ulva o Spyrogyra = filamentous
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