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Fungi Characteristics 1) Unicellular and Multicellular Eukaryote 2) Heterotrophs and major Decomposers 3) Most reproduce asexually by spores 4) Cell wall made of Chitin 5) Need moist, warm places in which to grow. • Fungi can either be unicellular or multicellular Witch’s Hat fungus is multicellular. Yeast is a singlecelled fungus. The cells of fungi are arranged in branching, threadlike tubes called hyphae Cap Gills Hyphae • Fungi are heterotrophs, but they cannot catch or surround their food. So, how do they eat? • They have to live near or actually on their food supply • There are 3 ways that fungi get their food: –consumers (ex: bracket fungus) –Decomposers (ex: bread mold) –Parasites (ex: zombie ants) Insert Zombie Slide Video Reproduction • Most fungi reproduce asexually by making spores • Yeast cells reproduce asexually in a process called budding. • Fungi reproduce sexually when conditions are unfavorable. The Role of Fungi in Nature • Food and Fungi – Yeasts make bread rise – Molds are used to make cheese – Mushrooms on pizza yum! • Environmental Recycling – Decomposers—break down chemicals in dead organisms • Disease-Fighting – Penicillin—bread mold that produces antibiotics which kill bacteria. • Disease-Causing – Athlete’s foot – Ring worm Symbiosis: Lichens •A fungus and algae or autotrophic bacteria living together in a mutualistic relationship •Fungus provides shelter, water, and minerals •Algae/bacteria provide food