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Classification- Fungi

Classification- Fungi. Biology Miss Schwippert. Importance. role as decomposers source of antibiotic drugs important for fermentation (bread, alcohol). Characteristics. Multicellular Eukaryotic Cell Wall (made of chitin instead of cellulose) Externally digest food and absorb nutrients.

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Classification- Fungi

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  1. Classification- Fungi Biology Miss Schwippert

  2. Importance • role as decomposers • source of antibiotic drugs • important for fermentation (bread, alcohol)

  3. Characteristics • Multicellular • Eukaryotic • Cell Wall (made of chitin instead of cellulose) • Externally digest food and absorb nutrients

  4. Structure • hypahe- search out and digest food • fruiting bodies- spore production • mycelium- search for food

  5. Obtaining Food • secrete strong acids and powerful digestive enzymes • must be dissolved in water (that is why fungi are found in moist areas) • absorb nutrients through cells

  6. Types of Fungi • Saprophytes- feed off nonliving organic compounds • Fungal parasites- feed from living organisms • Mutualistic fungi- live symbiotically with another organism

  7. Divisions • Lichens- symbiotic relationships- lichen & algae • Zygote- soil dwelling decomposers- molds • Sac fungi- all make spore containing sacs- yeast • Imperfect fungi- only capable of asexual reproduction- penicillin • Club fungi- possess basidia which are club shaped structures that produce spores- guild mushrooms

  8. Reproduction • mushrooms are fruiting bodies that contain gills where basidiae are located • on each basicidiae contains 2 haploid nuclei that fuse together during fertilization to form a diploid nucleus • diploid nucleus will go through meiosis and form 4 haploid cells • haploid cells- called basidiospores- are located in newly formed sacs • spores fall to the earth and are picked up by the wind • spores will germinate in the ground and form hyphae which will draw in nutrients as they grow (kills parent mushroom) • hyphae will mate with hyphae of another mushroom and the cycle starts over again

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