Micro Midterm 2

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brittanysparks
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105026
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Micro Midterm 2
Updated:
2011-10-30 23:32:39
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Micro Midterm
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Micro Midterm 2
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  1. Microbs that use CO2 as energy source (ex. Lichen)
    Autotrophs
  2. Microbs that require a carbon source so they feed on others
    Heterotrophs
  3. Cold loving microbs
    Psychrophils
  4. A pure protein that causes a disease (not a virus)
    Prion
  5. Name of genes that can be activated by chemicals, viruses, etc to function abnormally and cause cancer
    Oncogene
  6. When exotoxins are prepared in a lab to be a vaccine they are called
    Toxoid
  7. Non-living substance that causes disruption of normal bldily functions
    Poison
  8. What molecule on a gram negative bacterial membrane becomse a toxin
    LPS (Lipopolysacharide)
  9. Any non-living object that can transmit a microb to you is called a
    fomite
  10. Name of protein molecules produced by microbes that steal iron from iron transport molecules of the host
    Siderophores
  11. Plasmids that help the microb become more resistant to antibodies are called
    (R) factors
  12. Genes for exotoxins are carried on the
    Plasmids
  13. A base substitution that affects the stop codons is called a ______ mutation
    Non-sense
  14. A type of mutation that occurs when nucleotides are inserted or deleted
    Framshift
  15. Ligands are now as
    Adhesins
  16. Name of the protein coat that covers a virus
    capsid
  17. The objective manifestations of a disease are referred to as
    signs
  18. When the infective agent remains inactive for a time it is referred to as being
    Latent
  19. The world wide spread of a communicable disease is called a
    Pandemic
  20. Term that describes the area of the infection when it has spread through the whole body via the blood or lymph
    Systemic
  21. When several types of bacteria colonize they are called a
    Biofilm
  22. Name of the route of entry when a microb is depsoited directly beneath the skin
    Parenteral
  23. The term for the early state of a disease with only mild symptoms
    Prodromal
  24. The term for a hospital acquired infection
    Nosocomial
  25. The term for a disease that is always present (ex. cold)
    Endemic
  26. When diseases are transferred from animal to humans it is called
    Zoonosis
  27. Name of the surface molecules on bacteria that allow them to stick to complimentary surfaces on the host cells
    Ligands
  28. The immune system produces ______ to help neutralize toxins released by bacteria
    Antitoxins
  29. Type of horozontal gene transfer between bacteria where the donor has a plasmid and the recipient doens't
    Conjugation
  30. The term for the mechanical removal of bacteria from a surface
    Degerming
  31. Any process that destroys all life forms
    Sterilization
  32. The term that refers to the cause of the disease
    Etiology
  33. The term that refers to one organism being benefited while the host is unaffected
    Commensalism
  34. In preserving food the term that refers to the absence of water from the preserved food by any of several various methods is called
    Desiccation
  35. Term that indicates bacteria are multiplying in the blood
    Sepsis
  36. People who transmit a disease without having any signs or symptoms referred to as being
    Carriers
  37. Any life threating loss of blood pressure is referred to as
    Shock
  38. What is
    -Also referred to as LPS
    -Form different microbs that cause the same signs and symptoms
    -Part of the microbs cell wall
    Endotoxins
  39. What has:
    -Genes for their production and are carried on the plasmid
    -Are produced by either gram neg. or gram pos. microbs
    -Are often enzymes
    Exotoxins
  40. What causes lysis of the host cell because they are membrane disrupting
    Type II exotoxins
  41. Salts and sugars preserve food because they create considerable
    osmotic pressure
  42. Amount of infectious dose would take to make 50% of the population die
    LD50
  43. With AB toxins there are two parts
    Part A and Part B what do they do?
    • Part A: is lethal and kills the host cell
    • Part B: Attaches to the host cell
  44. Can't be spread, such as cancer or tetnus
    Non-Communicable disease
  45. Aware of infection, but patient is asymptomatic
    Subclinical infection
  46. Heat might partially kill a pathogen, but not completely
    Microwave
  47. Invasion of the body by a pathogenic microb
    Infection

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