Bacteria and Viruses

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Author:
melissag94
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236491
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Bacteria and Viruses
Updated:
2013-09-23 12:21:47
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BIO 100 exam
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exam 1
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  1. cells lack a membrane bound nucleus and any other membrane bound organelle
    kingdom of prokaryotic
  2. oldest group of living organisms?
    3.5 billion years
  3. by definition bacteria are all ?
    unicellular
  4. bacilli?
    cylindrical shape
  5. sprilla
    spiral shaped cylinders
  6. cocci
    spherical
  7. are small in size, generally not visible to the naked eye and are measured in terms of micrometers
    bacterical cells
  8. acquire the carbon compound they need from their environment
    heterotrophic bacteria
  9. heterotrophic bacteria can either be
    parasites or saprophytes
  10. most bacteria are _____
    saprophytes
  11. extract necessary carbon compounds from dead/decaying organic matter
    saprophytes
  12. extract the carbon compounds they need from living organic matter
    parasitic bacteria
  13. bacteria that are self feeding
    autotrophic bacteria
  14. can make everything they need from the environment
    autotrophic
  15. bacteria that use light energy
    phototroph
  16. chemosynthetic
    use energy
  17. bacterial reproduction?
    • binary fission
    • 2 split
  18. most bacteria are _______ _______ and are important ______ organisms
    • heterotrophic
    • saprobes
    • decomposing
  19. causes whooping cough
    bordatella pertussis
  20. bordatella pertussis
    highly contagious in infants
  21. borrelia burgdorfei
    causes lyme disease
  22. sign of lyme disease
    bullseye rash
  23. yersinis pestis?
    • causes bubonic plague
    • transmission by flea bites or rats
  24. bubonic plague?
    fatal bacterial infection
  25. food contaminating organisms?
    • e coli
    • salmonella
  26. symptoms of e coli
    • bloody diarrhea occasionally leads to kidney failure
    • severe blood and kidney problems
  27. cause of e coli?
    • ingestion of undercooked, contaminated ground beef
    • contact with human/animal feces
    • water
    • foods
    • person to person
  28. symptoms of salmonella?
    • fever
    • diarrhea
    • cramps
  29. signs of salmonella?
    severe food poisioning
  30. cause of salmonella?
    • ingestion
    • handling waste from infected animals
    • eating undercooked meat
    • juice from raw meat or contaminated food
  31. ____ could have salmonella
    vegetables
  32. if a chicken gets infected with salmonella, it could get into ?
    its eggs
  33. clostridium butlinum causes
    botulism
  34. a potentially fatal form of food poisoning from inadequately sterilized canned vegetables, smoked meats and fish
    clostridium botulinum
  35. toxin used to kill botulism =
    bio terrorism
  36. spore from botulism ?
    lasts forever
  37. botulism bacteria is ____, obligant ______, which means oxygen is ______
    • heterotrobic
    • anorobes
    • poisonous
  38. allow to get rid of lines and wrinkles
    botox injections
  39. how do botox injections help?
    wrinkles go away because you paralyze the muscles
  40. MRSA?
    common bacteria on surface of your skin
  41. how does MRSA spread?
    • casual contact
    • contaminated objects
  42. how does MRSA get in to your body?
    through wounds, abrasions
  43. bad thing about MRSA?
    • seriously drug resistant
    • grows very quickly
  44. viruses?
    • aren't cellular
    • violate rule, use RNA for genetic info
  45. will attack host cell and inject genetic info into that cell
    viruses
  46. nonliving infectious particles composed of a nucleic acid core (DNA or RNA) surrounded by a protein coat
    viruses
  47. viruses are _____ specific
    host cell
  48. host cells could be?
    • plants
    • bacterial
    • humans
  49. viruses jump from one species to another, what is the easiest jump? example?
    • from pigs to humans
    • ex swine flu
  50. 5 viral diseases?
    • herpes
    • rabies
    • AIDS
    • polio
    • ebola
  51. this viral disease never goes away
    herpes
  52. type 1 herpes?
    • cold sores
    • fever blisters
  53. type 2 herpes
    • genital herpes
    • STD
  54. rhabdoviruses?
    • rabies
    • 100% fatal if not treated
  55. Retro(RNA) viruses
    • AIDS
    • infect cells responsible for immune response
  56. cant treat disease, but can attempt to treat symptoms
    AIDS
  57. poliovirus?
    • polio
    • transmission- fecal contamination, then water ingestion
  58. who invented to oral polio vaccine?
    Savin
  59. positives of polio vaccine?
    • immunity to polio stays with you your whole life
    • used worldwide
    • can easily be administered
  60. ebola?
    • comes and goes
    • not in north America yet
    • VERY contagious
  61. symptoms of ebola virus?
    • fever
    • weakness
    • rashes
    • vomitting
    • hemorrhaging internally from eyes, mouth, ears
  62. death statistics of people with ebola?
    50-90% of people die within 2 weeks

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