Fungi

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Author:
SeanOHair
ID:
103626
Filename:
Fungi
Updated:
2011-09-22 15:06:48
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Micro 150 Crafton Hills College
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Study cards of the fungi
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  1. What qualifies as a 'yeast?'
    Unicellular, non-filamentous fungus that is either round or oval in shape
  2. Yeasts reproduce asexually by...?
    Budding
  3. Yeasts produce sexually by...?
    They don't.
  4. Define pseudohypha
    When a daughter cell does not completely seperate from the parent cell in the budding process and forms a chain of connected yeast cells.
  5. How are yeasts classified?
    Based upon their biochemical activity
  6. What qualifies as a 'mold?'
    Multicellular, filamentous fungus
  7. Molds produce asexually by...?
    Asexual spores and also by breaking off pieces of hyphae
  8. Molds reproduce sexually by...?
    Sexual spores
  9. Molds are classified according to what?
    Type of sexual spore, colony appearance, hypha type, and biochemical activity
  10. Define dimorphic
    Having two forms (in the case of fungi it refers to a fungus that can grow as either a yeast or a mold)
  11. What is the primary determinant of the form of a dimorphic fungus at any given time?
    Temperature
  12. At 25oC, a dimorphic fungi will present as?
    A mold
  13. At 37oC, a dimorphic fungus will present as?
    A yeast
  14. In an aerobic environment, yeast produce what metabolic products?
    CO2 and H2O
  15. In an anaerobic environment, yeast produce what metabolic products?
    Ethanol(C2H5OH) and CO2 (this is how beer is made)
  16. Define hypha
    Filament composed of chains of mold cells
  17. Can hyphae be composed of yeast cells?
    No, in yeast they are called pseudohyphae because they are accidental, not true hyphae.
  18. Define septate hyphae
    Hyphae where two cells are seperated by a wall between them
  19. Define coenocytic hyphae
    Hyphae where the individual cells are not seperated by walls between them
  20. What is the difference between aseptate hyphae and coenocytic hyphae?
    There is no difference, they are the same thing.
  21. What is the common name for members of the phylum Ascomycota?
    Sac fungi
  22. Penicillium notatum belongs to which phylum?
    Ascomycota
  23. Aspergillus niger belongs to which phylum?
    Ascomycota
  24. Candida albicans belongs to which phylum?
    Ascomycota
  25. Claviceps pupurea belongs to which phylum?
    Ascomycota
  26. Claviceps purpurea produces a substance similar to LSD. What is it?
    Ergot
  27. All members of phylum Ascomycota produce what kind of sexual spore?
    Ascospore (multiples of which are found in little sacs that give them their common name)
  28. What structure are ascospores found in?
    A sac-like ascus (which gives the phylum its common name)
  29. What asexual spores are found in the phylum Ascomycota?
    Conidiospores and blastospores mostly.
  30. What are conidiospores?
    Asexual spores that grow at the end of a stalk (conidiophore) and are not enclosed by a sac.
  31. What are blastospores?
    They are a type of conidiospore that grows in a bud off of the parent cell (yeast conidiospores)
  32. What are sporangiospores?
    Asexual spores that grow in a sac (sporangium) on the end of a specialized aerial hypha (sporangiophore)
  33. What is the common name for members of the phylum Zygomycota
    The Zygomycetes
  34. Rhizopus stolonifer (black-colored bread mold) belongs to which phylum?
    Zygomycota
  35. Mucor sp. belong to which phylum?
    Zygomycota
  36. All members of phylum Zygomycota produce what kind of sexual spore?
    Zygospore (a large spore enclosed in a thick wall or casing)
  37. What asexual spores are found in the phylum Zygomycota?
    Sporangiospores mostly
  38. What is the common name for members of the phylum Basidiomycota?
    Club fungi or fleshy fungi (these are the fungi you can easily spot from a distance, like mushrooms)
  39. Coprinus sp. belong to which phylum?
    Basidiomycota
  40. Agaricus sp. belong to which phylum?
    Basidiomycota

    Interesting tidbit: Agaricus sp. are the mushrooms you can eat.
  41. All members of the phylum Basidiomycota produce what kind of sexual spore?
    Basidiospore (these form on the tips of little projections called basidia that line the gills under the cap of the mushroom)
  42. What asexual spores are found in the phylum Basidiomycota?
    Conidiospores usually
  43. What is the common name for the members of the phylum Deuteromycota?
    Fungi imperfecti
  44. What makes members of the phylum Deuteromycota unique from other fungi?
    They produce no known sexual spore (or it hasn't been identified yet)
  45. Epidermophyton sp. belong to which phylum?
    Deuteromycota
  46. Coccidioides immitis belongs to which phylum?
    Deuteromycota
  47. Sporotrix schenkii belongs to which phylum?
    Deuteromycota
  48. All members of the phylum Deuteromycota produce what type of sexual spore?
    Sexual spores have not been identified for members of this phylum, otherwise they would be in another phylum somewhere else.
  49. What asexual spores are found in the phylum Deuteromycota?
    Any of them.

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