Eukaryotic Organisms 2.3

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Author:
ninabolong
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285666
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Eukaryotic Organisms 2.3
Updated:
2014-10-13 01:04:55
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protist
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protist
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protist
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  1. single flagellum
    pigmented eyespot (stigma)
    ____, instead of cell wall
    elongated, _____, flexible
    _____water
    binary fission
    Eugulena gracilis
    Euglenoids

    • pellicle
    • cigar shaped
    • fresh
  2. yellow and brown pigments
    ___ cell walls
    lack _____
    secreted test contains silicon or calcium carbonate
    binary fission
    _____ in marine and freshwater environments
    ________: fossil desposits of diatoms
    diatoms

    • has
    • flagella
    • diatomeceous earth
  3. ____ flagella
    some are bioluminescent 
    ____ cell wall
    may have a theca (tight affixed secreted layer, contains cellulose)
    dinoflagellates

    • two
    • may or may not
  4. What are the two funguslike protists
    • water molds
    • slime molds
  5. water molds, mildews, plant blights: sometimes classified as molds

    live freely in fresh water or as plant parasites
    ---mildew on ____ and _____, _____ (Irish potato famine, 1840s)
    oomycota

    grapes, sugar beets and blight potatoes
  6. - glistening, viscous masses of slime on rotting logs; also live in other decaying matter or in soil
    - ______phytes
    - a few are parasites but not of humans
    slime molds

    sacro
  7. a multinucleate, amoeboid mass which slowly phagocytizes dead matter
    plasmodium
  8. ______- heterotrophic
    - a few form colonies, most are free- living
    - some are ________, a few are parasites
    animal-like protists

    • protozoa
    • commensals
  9. flagellated
    most live in _______ relationships with plants or animals
    _______: lives in the termite gut and contributes enzymes that digest cellulose

    some parasitizes humans
    _____-African sleeping sickness
    _____- skin lesions
    _____- diarrhea
    _____- vaginal inflammation
    symbiotic

    • trichonympha
    • leishmania
    • giardia
    • trichonomas
  10. move by pesudopodia
    feed mainly on _______, including protozoa and _______
    ameoba which have no shells are typically parasites
    amebozoa (formerly sarcodines)

    • microorganisms
    • small algae
  11. parasitic and immobile
    ________- malaria parasite, requires both a human and mosquito host
    ________- causes lymphatic infection and blindness in adults and sever neurological damage to fetuses of infected pregnant women
    apixomplexans (sporzoans)

    • plasmodium
    • toxoplasma gondii
  12. largest groups of protozoans
    have cilia over most of their surfaces

    _______- only ciliate that parasitizes humans, causes dysentry
    ciliates

    balantidium coli
  13. study of fungi 

    ecology of fungi
    - marine, ______, terrestrial habitats
    -_____: rigid cell walls, unicellular, multicellular, membrane bound organelles, spore-bearing

    heterotrophs: _______/ parasites

    some have plasmids (like yeast)
    mycology

    • freshwater
    • eukaryotic
    • heterotrophs

    saprophytes
  14. Structure of the fungi
    1. ______: body of the fungi
    2. ______: found in thallus, loosely organized mass of threadlike structures (hyphae)
    3. ______: a few contain cellulose, most contain _____
    4. Hyphal cells: _____ nuclei, ____
    • 1. thalius
    • 2. mycelium
    • 3. cell walls, chitin
    • 4. one/ two, septa
  15. What is the importance of fungi?

    mycoses: human fungal disease
    • Ecosystem
    • --decomposers, give nutrients, recycle nutrients and substances
    • --antibiotics --> treat infections

    • health sciences
    • - facultative parasites
    • - nearly every form of life is parasitized by some fungus

    • Economic losses:
    • -leaf lesions due to blight
    • - wilting of basil plants
    • - powder mildew
  16. What are the 4 classification of fungi?
    1. zygomycota
    2. ascomycota
    3. basidiomycota (mushrooms)
    4. deuteromycota
    • 1. bread molds
    • 2. sac fungi
    • 3. club fungi
    • 4. fungi imperfecti

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