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Fungi

Fungi. Characteristics. eukaryotic multicellular (except yeasts) heterotrophic by absorption ( saprophytes – feed on dead organic matter) reproduce sexually & asexually no locomotion cell walls made of chitin classified by sexual reproduction decomposers.

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Fungi

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  1. Fungi

  2. Characteristics • eukaryotic • multicellular (except yeasts) • heterotrophic by absorption (saprophytes – feed on dead organic matter) • reproduce sexually & asexually • no locomotion • cell walls made of chitin • classified by sexual reproduction • decomposers

  3. hyphae – rootlike structures for absorbing nutrients • mycelium - all the hyphae in a fungus, collectively

  4. Fungal structure

  5. Examples • Rhizopus (black bread mold) • Yeast • Mushrooms, puffballs • Cup fungus • Ringworm fungus, athlete’s foot fungus • Truffles, morels

  6. Zygomycota life cycle

  7. Rhizopus

  8. Ascomycota life cycle

  9. Ascomycetes

  10. Yeasts budding

  11. Basidiomycota life cycle

  12. Symbiotic relationships in fungi: • Lichens – fungus & alga living together 2) Mycorrhizae – fungi & tree roots living together

  13. Lichens

  14. Importance of fungi: Helpful • make antibiotics (penicillin) • used in cheese-making (bleu cheese) • used in baking industry (yeast) • used in alcohol industry (yeast) • used as a food source • decomposers

  15. Importance of fungi: Harmful: • cause disease in humans • cause disease in crops • cause allergies • spoil food

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