Module 1

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Author:
aspears
ID:
161967
Filename:
Module 1
Updated:
2012-07-16 20:43:32
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Bio2010
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Mod 1
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  1. Compound Microscope
    3 different lens systems
  2. Ocular Lens
    • Closest to the eye
    • Magnifies specimen 10x 
  3. Pieces of the microscope moving top to botton
    • ocular lense
    • head
    • revolving nose piece
    • objective lenses
    • stage
    • condenser lens
    • lever for iris diaphragm
    • light source
    • base  
  4. Scanning Lens
    • red
    • 4x
    • used to locate specimen
    • has greatest field of view and working distance
  5. Lowpower Lens
    • yellow
    • 10x

    total magnification 100x 
  6. High dry lens
    • blue
    • 40x
    • Highest power used with wet mounts
    • total magnification is 400x   
  7. 100x oil immersion lens
    • oil is necessary to prevent refraction of light
    • Highest resolution
    • total magnification 1000x
  8. Magnification
    ability to increase the apparent size of something
  9. Resolution
    Ability to distinguish objects which are close together, a combination of clarity and magnification
  10. Field of View
    The diameter of the filed you see when you look through the ocular lens
  11. name the knobs used to focus a specimen
    Coarse and fine adjustment knobs
  12. Working Distance
    The distance between the tip of the lens and the specimen
  13. Depth of field
    The vertical distance a specimen is in focus
  14. Stage Control Knobs
    used to manipulate the slide along the stage
  15. Condenser Lens
    Focuses light on the specimen
  16. lever for iris diaphragm
    regulates the intensity of light passing through the specimen
  17. Parfocal
    if a specimen is in focus under any power magnification then it should be approximately in focus with any power
  18. Parcentric
    specimen will be approximately centered at all magnifications
  19. Trichinella spiralis
    • worm that causes trichinosis, a muscular disease
    • acquired by the consumption of raw or undercooked pork
  20. worm that causes trichinosis, a muscular disease acquired by the consumption of raw or undercooked pork
    Trichinella spiralis
  21. saccharomyces cerevisiae
    • yeast. common for bread, beer and wine
    • circular budding cells
  22. yeast. common for bread, beer and wine circular budding cells
    saccharomyces cerevisiae
  23. Mixed Diatoms
    • microscopic algae
    • responsible for 2/3's of earth's O2
    • walls made of silicon "glass houses"  
  24. Trypanosoma spiralis
    flaginated single-cell organism is the cause of the African sleeping sicknesstransmitted by the bite of the tse-tse fly
  25. flaginated single-cell organism is the cause of the African sleeping sicknesstransmitted by the bite of the tse-tse fly
    Trypanosoma spiralis
  26. black bread mold.This fungus has a large round ball at the end of a filament when the spores are ready the sporandium breaks ope to release them.
    Rhizopus
  27. Rhizopus
    • black bread mold.
    • This fungus has a large round ball at the end of a filament
    • when the spores are ready the sporandium breaks open to release them.
  28. Penicillium
    • Mold- filamentous fungi
    • some species provide penicillin
    • others make cheeses
    • The spore forming structures of this mold look like tiny paint brushes or fingers on a hand.
  29. filamentous Fungi - mold
    some species provide penicillin
    others make cheeses
    The spore forming structures of this mold look like tiny paint brushes or fingers on a hand.
    Penicilliun
  30. Aspergillus
    • Mold- filamentous fungi
    • serves as a pathogen
    • produces pulmonary aspergillosis : respiratory infection
    • Spore forming structure resembles a sun with rays radiating from it.
  31. Mold -filamentous fungi
    serves as a pathogen
    produces pulmonary aspergillosis : respiratory infection
    Spore forming structure resembles a sun with rays radiating from it.
    Aspergillus
  32. three basic shapes of bacteria
    bacillus, cocci, spirilli
  33. Who and when were the Domains developed by. Name them.
    • Woese, 1980
    • Archaea
    • Eubacteria
    • Eukarya
  34. Name Whittaker's Kingdons, dev. 1970
    • Monera
    • Protista
    • Fungi
    • Plantae
    • Animalia
    • last three are grouped based on their means of obtaining nourishment
  35. Monera
    • single-celled, prokaryotes
    • no nucleus or complex cell structure
  36. Protista
    • Unicellular and Multicellular
    • animal-like unicellular organisms: trypanosoma
    • plant-like: diatoms, algea
    • fungus-like organisms: phytopthera
  37. Fungi
    • yeasts and molds
    • absorb nutrients from dead or living materials
    • Pathogenic if absorbing from living
  38. Plantae
    • Autotrophic (producing their own food) through photosynthesis
    • Chlorophyll
  39. Animalia
    • obtain nutrients through ingestion
    • microscopic representation includes paracitic helmnths (worms)
  40. Why is the scanning lens used for locating a specimen?
    It has the greatest field of view and working distance

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