BISC Lab 1

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tuchiyama10
ID:
40437
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BISC Lab 1
Updated:
2010-10-07 01:36:55
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bio lab test
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  1. bacterial cell walls contain this complex polymer
    peptidoglycan
  2. characteristics of gram negative bacteria
    • 1. more complex cell wall
    • 2. thin peptidoglycan wall
    • 3. outer lipopolysaccharide wall layer
    • 4. retain safranin
    • 5. pink/red
  3. characteristics of gram positive bacteria
    • 1. simple cell wall
    • 2. thick peptidoglycan layer
    • 3. no outer lipopolysaccharide layer
    • 4. retain crystal violet
    • 5. blue/purple
  4. common colony shapes
    • punctiform
    • round
    • filamentous
    • irregular
  5. common colony margins
    • smooth
    • curled
    • wavy
    • lobate
    • filamentous
  6. common colony surface characteristics
    • smooth
    • concentric
    • wrinkled
    • contoured
  7. gram staining technique
    • 1. crystal violet 1 min
    • 2. water
    • 3. gram's iodine 1 min
    • 4. water
    • 5. 95% alcohol solution until almost clear
    • 6. water
    • 7. safranin 45s
    • 8. water
    • 9. blot with bibulous paper
  8. antibiotic
    chemical produced by a bacterium or fungus that has the potential to control the growth of another bacterium; selective
  9. clade
    group of species, all of which are descended from one ancestral species, representing one phylogenetic group
  10. euglenozoan
    Trypanosoma levisi
  11. Alveolates
    paramecium, dinoflagellates
  12. stramenopiles
    diatoms, brown algae
  13. foraminiferans and
    radiolarians
  14. amoebozoans
    amoeba, physarum
  15. rhodophyta
    red algae
  16. chlorophyta
    green algae (spirogyra, ulva, chara)
  17. brown algae looks brown because of
    fucoxanthin, chlorophyll
  18. pseudopedia of radiolarians called
    axopodia
  19. red algae looks red because of
    chlorophylla, phycocyanin, phycoerythrin
  20. molecular clock hypothesis
    a comparison of DNA nucleotide sequences of different species
  21. evolutionary agents
    things that interrupt H-W equilibrium

    • infinitely large population
    • no mutation
    • random mating
    • no genetic drift
    • no natural selection
  22. if an object is centered and in sharp focus with one objective, it will be centered and in focus when another objective is rotated into the viewing position
    parcentric and parfocal

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