Fungi Quiz: Basidiomycetes & Deuteromycetes
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Questions and Answers

What is the primary method of sexual reproduction in Basidiomycetes?

  • Budding
  • Plasmogamy followed by karyogamy and meiosis (correct)
  • Binary fission
  • Fragmentation
  • Which of the following statements about Deuteromycetes is correct?

  • They were originally classified based on their sexual reproductive forms.
  • They exclusively decompose organic material.
  • They are known as imperfect fungi due to their unobserved sexual stages. (correct)
  • They are exclusively sexual fungi.
  • Basidiospores are produced on which structure in Basidiomycetes?

  • Stipes
  • Hyphal tips
  • Mycelium
  • Basidium (correct)
  • Which characteristic is NOT true for Basidiomycetes?

    <p>They reproduce asexually through budding.</p> Signup and view all the answers

    The common habitat for Basidiomycetes includes which of the following?

    <p>Soil, logs, and tree stumps</p> Signup and view all the answers

    Study Notes

    Basidiomycetes

    • Commonly known as mushrooms, bracket fungi, or puffballs
    • Grow in soil, on logs, and tree stumps
    • Mycelium is branched and septate
    • Asexual reproduction is typically absent
    • Reproduction by fragmentation is common
    • Sex organs are absent
    • Plasmogamy brings about fusion of two vegetative or somatic cells
    • Resultant structure is dikaryotic
    • Karyogamy and meiosis occur in the basidium
    • Basidiospores are produced on the basidium (pl.: basidia)
    • Basidia are arranged in fruiting bodies called basidiocarps
    • Common members include Agaricus (mushroom), Ustilago (smut), and Puccinia (rust fungus)

    Deuteromycetes

    • Commonly known as imperfect fungi
    • Only the asexual or vegetative phases are known
    • When sexual forms are discovered, they're moved into other classes
    • Later, when linkages are established, they are correctly identified
    • Sometimes moved to ascomycete or basidiomycete classes
    • Reproduce only through asexual spores (conidia)
    • Mycelium is septate and branched
    • Some are saprophytes or parasites
    • Help in mineral cycling
    • Examples include Alternaria, Colletotrichum, and Trichoderma

    Ascomycetes

    • Some members are known as morels and truffles (edible)
    • Sexual spores are called ascospores
    • Spores produced endogenously in sac-like asci (singular ascus)
    • Asci are arranged in fruiting bodies called ascocarps
    • Examples: Aspergillus, Claviceps, and Neurospora are used in biochemical and genetic works

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    Description

    Test your knowledge on the fascinating world of fungi, specifically focusing on Basidiomycetes and Deuteromycetes. This quiz covers their characteristics, reproduction methods, and common examples, providing insights into these unique organisms' life cycles and classifications.

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