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Exam #3: Eukaryotes
Identifying Microbial Eukaryotes
33
Microbiology
Undergraduate 2
10/18/2014

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Term
Mycellium
Definition
Mass of fungal hyphae
Term
Thallus
Definition
Fleshy; consists of hyphae
Term
Fission
Definition
Symmetrical division of yeasts
Term
Budding
Definition
Asymmetrical division of yeasts
Term
Dimorphic Fungi
Definition
Yeast-like at 37C, mold-like at 25C.
Pathogenic
Term
Plasmogamy
Definition
Sexual Reproduction of Fungi
Donor Nucleus + penetrates and combines with recipient (-) cell's cytoplasm
Term
Karyogamy
Definition
Fungal Sexual Reproduction
+ and - nuclei fuse
Term
Meiosis
Definition
Fungal Sexual Reproduction
Diploid nucelus producing haploid nuclei
Term
Zygospore
Definition
Fungal Spore
Fusion of haploid spores
Term
Ascospore
Definition
Fungal Spore
Formed in sac (ascus)
Term
Basidiospore
Definition
Fungal Spore
formed externally on a pedestal (basidium)
Term
Zygomycota
Definition
Conjugation Fungi
Coencytic
Produce Sporangiospores and Zygospores
Term
Microsporidia
Definition
Fungal phylum
No hyphae
No mitochondria
Intracellular parasites
Term
Ascomycota
Definition
Sac Fungi
Telemorphic (Sexual and asexual spores)
Ascospores and frequently condiospores
Aspergillus, blastomyces, cutaneous mycoces
Term
Anamorphs
Definition
Fungi producing asexual spores only
rRNA sequencing places most in Ascomycota, some in basidiomycota.
Penicillium
Term
Basidiomycota
Definition
Club Funi (Mushrooms)
Produce basidiospores, sometimes condiospores
Term
Lichen
Definition
Mutualistic combination of fungi and algae
Term
Phaeophyta
Definition
Brown Algae
Cellulose and alginic acid cell walls
multicellular
Chlorophyll a, c, xanthophylls
Store carbohydrates
harvested for algin
Term
Rhodophyta
Definition
Red Algae
Cellulose Cell Walls
Most Multicellular
Chlorophyll a, d, phycobiliproteins
Store glucose polymer
Agar and carrageenan
Term
Chlorophyta
Definition
Green Algae
cellulose cell wall
Uni or multicellular
Chlorophyll a and b
Store glucose polymer
Gave rise to plants
Term
Diatoms
Definition
Pectin and silica cell walls
Unicellular
Chlorophyll a, c, carotene, and xanthophyll
Store Oil; fossilized and formed oil
Domoic Acid producers
Term
Dinoflagellates
Definition
Cellulose in plasma membrane
Unicellular
Chlorophyll a, c, carotene, xanthins
Store Starch
Some symbionts in marine mammals
Neurotoxins poison shellfish (red tide)
Term
Oomycota
Definition
Cellulose cell walls
Multicellular
Chemoheterotrophic
Produce zoospores
Decomposers and plant parasites
Water molds
Term
Trophozoite
Definition
Vegetative form of protists
Term
Schizogony
Definition
Asexual reproduction by protists; produces multiple nuclei that split off from mother organism.
Term
Diplomonads
Definition
Prostist
No mitochondria
Multiple flagella
Giardia
Term
Parabasalids
Definition
Prostist
Multiple Flagella
No cyst form
Trichmonas vaginalis
Term
Euglenozoa
Definition
Prostist
Move by flagella
Photoautotrophic
Hemoflagellates
-Sleeping Sickness, chagas
Term
Amebae
Definition
Prostist
Pseudopods
Term
Apicomplexa
Definition
Prostist
Nonmotile
Intracellular parasites
Complex life cycle
Plasmodium (malaria)
Term
Ciliates
Definition
Prostist
Move by cilia
Complex Cells
Balantidium coli; only human pathogen ciliate
Term
Slime mold
Definition
Prostist
Similar to fungi, but more related to amoeba
Term
Biological Transmission
Definition
Transmission that involves pathogen reproducing in a vector.
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