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Flashcards

Fungi

jf19 English 64 cards

Cards in this deck (64)

  1. 1MycologyThe study of fungi.
  2. 2Why are fungal colonies described as vegetative?Because they're composed of cells involved in catabolism and growth
  3. 3What is the body of a mold or fleshy fungus called?Thallus
  4. 4What does the thallus consist of?Hyphae filaments
  5. 5Septate hyphaeContain cross-walls
    unicelluleate cell-like units
  6. 6Coenocytic HyphaeDo not contain Septa
    Long, continuous cells with many nuclei
  7. 7How do hyphae grow?By elongating at the tips
  8. 8What is the portion of a hypha that obtains nutrients called?Vegetative hypha
  9. 9What is the potion of a hypha that is concerned with reproduction called?Reproductive or aerial hypha
  10. 10What is a filamentous mass of hyphae called?Mycelium
  11. 11What are non filamentous, unicellular fungi?Yeasts
  12. 12What type of yeasts divides unevenly?Budding Yeasts
  13. 13What type of yeasts divide evenly?Fission Yeasts
  14. 14What is dimorphism?Two forms of growth
  15. 15How do Dimorphic molds reproduce?Producing vegetative and aerial hyphae
  16. 16How do yeastlike dimorphic fungi reproduce?By budding
  17. 17What is the temperature of dimorphic yeast?35 degrees C
  18. 18What is the temperature of dimorphic molds?25 degrees C
  19. 19How do fungi reproduce?Both asexual and sexual reproduction in fungi occurs by the formation of spores.
  20. 20What are spores formed from?Aerial hyphae
  21. 21What kind of spores are formed by the hyphae of one organism? When these spores germinate, they become genetically identical to the parent.Asexual spores
  22. 22What kind of spores result from the fusion of nuclei from two opposing mating strains of the same species? Will have genetic characteristics of both parents.Sexual Spores
  23. 23True or False: Asexual Spores are produced thorough mitosis?True
  24. 24Tue or False: During cell division of asexual spores, there is no fusion of the nuclei of cells.True
  25. 25What are the two types of asexual spores produced by fungi?Conidiospore
    Sporangiophore
  26. 26What are Conidia formed by the fragmentation of a septate hypha into single, slightly thickened cells called?Arthroconidia
  27. 27What are formed from the buds of its parent cell?Blastoconidia
  28. 28What is a thick-walled spore formed by rounding and enlargement within a hyphal segment?Chlamydoconidium
  29. 29What are the three phases of sexual spore reproduction?1. Plasmogamy
    2. Karyogamy
    3. Meiosis
  30. 30In what stage of sexual reproduction does the positive and negative nuclei fuse to form a diploid zygote nucleus?Karyogamy
  31. 31In what phase of sexual reproduction does a haploid nucleus of a donor cell (+) penetrate the cytoplasm of a recipient cell (-)?Plasmogamy
  32. 32In what phase of sexual reproduction does the diploid nucleus give rise to haploid nuclei (sexual spores), some of which may be genetic recombinants?Meiosis
  33. 33What is the optimal pH for fungi?about 5
  34. 34True or False: Most fungi are more resistant to osmotic pressure than bacteria.True
  35. 35What are 4 medically important fungi?Zygomycota
    Microsporidia
    Ascomycota
    Basidiomycota
  36. 36What are the asexual spores of zygomycota called?Sporangiospore
  37. 37What are the sexual spores of Zygomycota?Zygospore
  38. 38How do zygospores form?When nuclei of two similar cells fuse
  39. 39BasidiomycotaAre considered to be club fungi.
    But not all are club fungi
  40. 40How do basidomycota produce asexually?By conidiospores
  41. 41How do basidiomycota produce sexually?By basidiospores
  42. 42Basidospores are formed externally on a base pedestal called aBasidium
  43. 43In Basidospres, it is the that results in the mushroom.Sexual Reproduction
  44. 44What is a fungal infection called?Mycosis
  45. 45What is a fungal disease that is deep within the body (usually means it has accessed the bloodstream)Systemic Mycosis
  46. 46What type of fungal disease is beneath the skin?Subcutaneuous Mycosis
  47. 47What type of fungal disease affects hair, skin, and nails? Is the most common. Ex. Athlete's footCutaneous Mycosis
  48. 48What type of fungal disease is localized (Hair shafts)Superficial Mycosis
  49. 49What type of fungal disease involves harmless fungi in normal habitat, but pathogenic in a compromised host?Opportunistic Mycosis
  50. 50What type of fungal infection is on the rise because of increasing population of immunocompromised people?Opportunistic Mycosis
  51. 51What are unicellular or filamentous photoautotrophs?Algae
    *We really don't get infected by organisms which do photosynthesis.
  52. 52What 3 things do Algae lack?Roots, stems, and leaves
  53. 53Tue or False: Water is necessary for Algae growth and reproduction.True
  54. 54Can you get an Algae infection?No.
    But you can get sick from the byproducts.
  55. 55How do all algae reproduce?Asexually
  56. 56Multicellular algae can fragment or reproduce sexually via....Alternation of generations
  57. 57What type of Algae produce a lethal toxin?Red Algae
  58. 58What are the cell walls of Diatoms made of?Pectin and silica
  59. 59What do Diatoms store?Store Oil
  60. 60What do Diatoms produce that can cause neurological disease?Domoic Acid
  61. 61What is the plasma membrane in Dinoflagellates made of?Cellulose
  62. 62Are Dinoflagellates unicellular or multicellular?Unicellular
  63. 63What toxins do Dinoflagellates make?Neurotoxins (saxitoxins) that cause paralytic shellfish poisoning
    Known as "Red Tide"
  64. 64—

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Flashcards on Fungi , created by jf19 on 27/09/2015.
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