PPT-Division Phaeophyta -Brown algae (Seaweeds)

The main characteristics of Phaeophyta are 1 Cell construction cellulose fibers bound with Alginic acid Fucoidan form cell walls 2 Food reserves laminarin. Multicellular Primary Producers: . Seaweeds and Plants. Seaweeds. -. multicellular. (a few exceptions), eukaryotes. -important source of food, habitat . -producers of oxygen for organisms on land and in oceans. Seaweeds and Plants. Seaweeds. NOT PLANTS!. Multicellular. algae. No roots, stems, leaves. Primary producers. Important for Habitat . More accurately, . MACROPHYTES. or. MACROALGAE. Seaweed Structure. Protists. (Algae). Autotrophs. – . photosynthetic. , have . chloroplasts. , all have chlorophyll a. Classified by . pigment. types / color group, food storage, cell wall composition (7 phyla). Produce most . How does seaweed benefit life in the ocean? Humans?. READ ARTICLE. SEAWEED CHARACTERISTICS. Multicellular algae/ macroscopic algae. Photosynthetic. Producer. Autotrophic. SEAWEEDS are CLASSIFIED by color. Primary Producers: Seaweeds and Algae. Chapter 6. Many fascinating photosynthetic organisms populate the oceans, and for the most part, they are very different from the land plants that surround us.. SEAWEEDS. . An Overview. Phycology. The study of Algae. Also called . Algology. Not a plant - lack the structural complexity of higher plants . They DO photosynthesize. Characteristics. Range in size from . Multicellular. Algae. Seaweeds ( . macroalgae. ). Multicellular. algae. . . Three groups of seaweeds. Red algae – phylum(division) . Rhodophyta. Brown algae – phylum(division) . Phaeophyta. Grouped under: . Stramenophila . (because they are aquatic). EX: golden algae, diatoms ,. water molds.. Phylum: . Phaeophyta . BROWN ALGAE:. . 1500 species . multi-cellular . Protista. Are located in rocky shores in North America . to the bottom of the sea….. STRUCTURE. Four . types of algae. Unicellular. Colonial. Filamentous. Multicellular. or . macrophytic. Phylum Chlorophyta –. Green Algae. Algae a.k.a. seaweed. Kingdoms . algae). The main characteristics of . Phaeophyta. . are:. 1- Cell construction: cellulose fibers bound with . alginic. acid form cell walls.. 2- Food reserves:. . laminarin. , a soluble polysaccharide, and . Seaweeds and Plants. Seaweeds. -. multicellular. (a few exceptions), eukaryotes. -important source of food, habitat . -producers of oxygen for organisms on land and in oceans. -economic importance. -also called MACROPHYTES or MACROALGAE. classifiction. system whish was suggested by . Ropert. . wittaker. in 1969. the 5 kingdoms were ( . monera. , . protista. , plants ,animals ,fungi) . So algae included in . kingdome. . monera. . ) is a plant-like organism that uses sunlight to produce energy in a process called . photosynthesis. . Algae are extremely important organisms because they are considered to be the primary oxygen-producing organisms on Earth. all. . shapes . and sizes. . Algae . are not plants, even though they sometimes look . like. . them. . . They . are all referred to as algae, the . red. , green and brown . algae. . are .