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MICROBIOLOGY FINAL EXAM

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MICROBIOLOGY FINAL EXAM Powered By Docstoc
					            MICROBIOLOGY FINAL EXAM
                  BIOLOGY 2420
               SECTIONS SO1 & S50
          INSTRUCTOR – HERSHELL HANKS

NAME:_____________________________________

Test material over PROTOZOAN & FUNGAL INFECTIOUS DISEASES,
Epidemiology, Pathogenesis, Disinfectants and Antiseptics.



1. Cryptosporidiosis is transmitted by ________ and this disease can be
   treated with the drug ___________?
   a. the fecal oral route/spiramycin
   b. eating contaminated food/penicillin
   c. drinking contaminated water/streptomycin
   d. respiratory droplets/tobramycin
   e. ingesting contaminated water/spiramycin

2. This fungus causes “Athlete’s Feet”?
   a. Trichophyton tonsurans          b. Trichophyton rubrum
   c. Trychophyton species            d. Epidermophyton floccosum

3. ________ is (are) when an infection damages host tissues?
       a. Pathogens b. Infectious disease c. Disease d. Pathogenicity
       e. Virulence
4. ______________ is a disease caused by a sporozoan? This organism
   comes from the fecal material of cats. Pregnant women should not handle
   liter boxes for this is a transmission method. This disease should be
   treated with the drug _______________?
   a. Histoplasmosis/pyridium
   b. Trypanosomiasis/penicillin
   c. Toxoplasmosis/pyrimethamine
   d. Leishmaniasis/pentostam
   e. Cryptosporidiosis/pentanamine
5. This fungus causes ringworm of the body?
      a. Trichophyton tonsurans      b. Trichophyton rubrum
      c. Trichophyton species        d. Epidermophyton floccosum



6. __________ are objective changes in a person’s state of health?
     a. Symptoms b. Symbiosis c. Syndrome d. Parasitism e. Signs



7. ___________ refers to the destruction of vegetative pathogens and
   non-spore formers? Use boiling water or UV radiation.
   a. Sterilization b. Disinfection c. Antisepsis d. Degerming
   e. Sanitization

8. _____________ causes diarrhea, nausea, intestinal cramps, mucous
   secretion and produces a foul smelling gas. It is also a flagellated
   protozoan contracted by drinking contaminated drinking water. This
   disease should be treated with _______________?
   a. Amoebiasis/iodoquinol
   b. Cryptosporidiosis/pentamimine
   c. Toxoplasmosis/sulfa drugs
   d. Giardiasis/metronidazole
   e. Trypanosomiasis/Flagyl

9. This fungus causes ringworm of the scalp?
      a. Trichophyton tonsurans      b. Trichophyton rubrum
      c. Trichophyton species        d. Epidermophyton floccosum

10. The capacity of an organisn to cause disease is _______________?
    a. pathology b. pathogenicity c. pathogenesis d. Parasitism
    e. pathogens

11. The ______________ is the minimal length of time in which all the
    bacteria in a liquid culture will be killed at a given temperature?
    a. decimal reduction time b. thermal death point c. thermal death time
12. The African Trypanosomiasis disease is transmitted by the bite of a
    _____________? This protozoan may migrate to the spinal fluid where
    it will show pleocytosis? This disease should be treated with _______?
    a. tse tse fly/streptomycin        b. female sand fly/suramin
    c. female sand fly/suramyicin      d. tse tse fly/suramin
    e. anopheles fly/suramin

13. This fungus causes ringworm of the nails?
      a. Trichophyton tonssurans            b. Trichophyton rubrum
      c. Trichophyton species               d. Epidermophyton floccosum

14. __________ is when the host is not affected and there is benefit to
the microbes? a. Symbiosis b. Parasitism c. Mutualism
              d. Commensalism e. Communicable disease



15. Pasteurization using the HTST process for milk will reach ___ degrees
    temperature for ____ seconds/minutes?
    a. 140o/.8 seconds b. 63o/30 minutes c. 134o/1 second d. 72o/15 secs.

16. This disease causes inflammation of the colon. It is transmitted by
    ingesting contaminated food or water. Poor sanitation and poor hygiene
    contribute to this type of infection. The parasite that causes this
    disease is the only one of its type to ingest red blood cells? This
    organism is _______?
    a. Entamoeba coli             b. Entamoeba histolytica
    c. Leishmania                 d. Brucella abortus
   f. Trypanosoma gambiense

17. This fungus causes “jock itch”?
      a. Trichophyton tonsurans             b. Trichophyton rubrum
      c. Trichophyton species               d. Epidermophyton flocossum

18. _____________ is the term used when there is disease in a population
   in excess of normal?
    a. Sporadic b. Pandemic c. Endemic d. Epidemiology e. Epidemic
19. ____________ will render a bacterium dormant, but does not kill them?
    a. Refrigeration b. Desiccation c. Osmotic Pressure d. Rapid freezing
    e. Slow freezing

20. The genus Phlebotomus, which is the female sand fly, is the vector for a
    flagellated, parasitic protozoan. Dogs are usually the reservoir host and
    rodents can be. The protozoan will be ingested by macrophages and
    here is where the organism replicates. If the sandfly feeds on an
    infected dog, it can pick up this protozoan and transfer it to a human
    host. The name of the disease is _____________ caused by the
    protozoan ________________?
    a. Cryptosporidiosis/Toxoplasma gondii
    b. Giardiasis/Cryptosporidium parvum
    c. Toxoplasmosis/Giardia lamblia
    d. African trypanosomiasis/Entamoeba histolytica
    e. Leishmaniasis/Leishmania

21. __________ is a fungal disease that is transmitted by soil, which has
    been soiled by bird and bat feces? This is a dimorphic fungus that can
    cause a leukopenia and G. I. tract ulcers?
    a. Blastomycosis b. Cryptococcosis c. Histoplasmosis d. Candidiasis
    e. Coccidiodomycisis

22. A disease passed by __________ is transmitted from one person to
    another with no intermediate host involved?
    a. zoonoses b. indirect contact c. direct contact
    d. droplet spread e. nosocomial infections

23. Which one of the following chemicals does NOT target a bacterium’s
    plasma membrane?
    a. phenolics b. iodine c. biguanides d. Quats

24. Chaga’s Disease is caused by the protozoan ____________________?
    This disease is transmitted by the _____________ organism?
    a. Leishmanis/Female sand fly
    b.Trypanosoma gambiense/Tse Tse fly
    c. Trypanosoma cruzi/Reduviid bug
    d. Plasmodium vivax/Anopheles mosquito
Match the drug of choice with the fungal disease:
I only want on answer for each of these diseases. For example, if a & c are
both the answer for one disease, give me the 1st answer, such as A.
_____ 25. Histoplasmosis                    a. Grieofluvin
_____ 26. Candidiasis                       b. Fluconazole
_____ 27. Coccidiodomycosis                 c. Nystatin
_____ 28. Ringworms                         d. Amphotericin B
_____ 29. Cryptococcosis                    e. Ketoconazole
_____ 30. Blastomycosis

31. __________ is where a vector acts as a host for some stage in the life
    cycle of a pathogen?
    a. Mechanical transmission b. Zoonoses c. Airborne transmission
    d. Biological transmission e. Nosocomial infection



32. ____________ is bacteriostatic. It’s activity is broad spectrum. It’s
    primary use today is to stop the growth of mildew in paint?
    a. Silver nitrate b. Copper citrate c. Cidex d. Sodium hypochlorite
    e. Mercuric chloride

33. _____________ is the only encapsulated yeast to invade the CNS?
    a. Cryptoccus neoformans       b. Histoplasmosis capsulatum
    c. Coccidiodes immitis         d. Candida albicans
    e. Blastomyces dermatitidis



34. __________ is where small particles of mucous or saliva are inhaled
    directly by a susceptible host?
    a. Airborne transmission    b. Common vehicle      c. Direct contact
    d. Indirect contact         e. Droplet spread

35. ________ will not kill Mycobacterium or endospores. It is bacteriocidal
    against Gram Positive Organisms and Cephacol is an example?
    a. Phenol b. Phenolics c. Quats d. Glutaraldehyde e. Halogens
36. ______________ is a fungal disease that is found mainly in the SW
    United States? This fungus can be found in an infected person’s
    spherules? a. Histoplasmosis b. Cryptococcosis c. Candidiasis
    d. Coccidiodomycosis       e. Blastomycosis



37. ___________ causes “Thrush”?
    a. Cryptococcus neoformans              b. Histoplasmosis capsulatum
    c. Coccidiodes immitis                  d. Candida albicans
    f. Blastomyces dermatitidis

38. An infectious disease where there are only a small number of isolated
    cases is called ______________?
    a. endemic b. pandemic c. sporadic d. epidemic e. zoonosis

39. Which of the following statements is NOT true about alcohols?
    a. They degerm                         b. Will not kill naked viruses
    c. Optimum concentration is 70%        d. Denature proteins
    e. They are good antiseptics

40. ___________ is a dimorphic fungus that causes lesions in humans that
    resemble tuberculosis?
    a. Cryptococcus neoformans           b. Histoplasmosis capsulatum
    c. Coccidiodes immitis               d. Candida albicans
    e. Blastomyces dermatitidis

41. ___________ is passive transmission by a vector?
    a. A nosocomial infection b. Biological transmission c. Droplet spread
    d. Mechanical transmission        e. Air-borne transmission

42. ___________ is a communicable disease that is easily transmitted from
    one host to another?
    a. Zoonotic disease b. Parasitism c. Contagious disease
    d. Non-contagious disease        e. Infectious disease

43. ________ are subjective changes in a person’s state of health?
    a. Symptoms b. Signs c. Zoonoses d. Syndromes e. Sporadics
44. ________________ is a treatment used to help lower the number of
    microbes on eating & drinking utensils to safe public health levels?
    a. Sterilization b. Disinfection c. Antisepsis d. Degerming
    f. Sanitization

45.___________ is the scientific study of disease?
    a. Epidemiology    b. Pathogenicity    c. Pandemiology     d. Etiology
    e. Pathology

46. Which one of the following statements is NOT true?
     a. Endospores are hard to exterminate
     b.Sepsis indicates bacterial contamination
     c. Heat treatments need a long exposure time to kill bacteria
     d. Decimal Reduction Time is useful in the canning industry
     e. Osmotic pressure uses low concentration of sugar/salt to inhibit
       growth of microorganisms

47. ___________ is the method by which the normal flora prevents
    overgrowth of harmful microbes?
    a. Commensalism b. Resident flora c. Mutualism
    d. Microbial antagonism  e. Symbiosis



48. _________ are/is the type process that kills by oxidation effects?
    a. Moist heat b. Halogens c. Dry heat d. Slow freezing e. Desiccation



49. ______________ is the study of the cause of disease?
     a. Epidemiology b. Zoonosis c. Virulence d. Etiology
     e. Pathogenicity

Match the temperature with the pasteurization method:

_______   50.   Ultra High Temperature            a.   1 sec. 134oC
_______   51.   Classic                           b.   15 secs. 72oC
_______   52.   High Temp.-Short Time             c.   .8 secs 140oC
_______   53.   Modern                            d.   30 mins. 63oC
Match the final product with it’s component parts:

_______   54.   Alcohol + Iodine                     a.   Surgical Hand Soap
_______   55.   Iodine + Organic Compound            b.   Hypochlorous Acid
_______   56.   Water + Chlorine                     c.   Tincture
_______   57.   Alcohol + Biquanide                  d.   Iodophore



 58. _______________ means constantly present, but few in number?
     a. Epidemic b. Sporadic c. Pandemic d. Endemic e. Colonization



 59. The sexual cycle of this disease is only found in the small intestines?
     a. Blastomycosis b. Coccidiodomycosis c. Cryptosporidiosis
     d. Leishmaniasis e. American Trypanosomiasis



 60. Which of the following diseases is transmitted from person to person?
     a. Superficial mycoses    b. Cryptpcoccosis c. Coccidiodomycosis
     d. Toxoplasmosis         e. None of these answers are correct



Match the disease with what it attacks:

_______ 61. attacks lymph nodes, skeletal, urinary           a. Toxoplasmosis
            and reproductive systems
_______ 62. attacks & ulcerates the G. I. tract,             b. Giardiasis
            causes adrenal necrosis & leukopenia
_______ 63. attacks CNS, causes brain damage and             c. Blastomycosis
            vision problems
_______ 64. interferes with food absorption                  d. Amoebic
                                                                dynsentery
_______ 65. attacks liver & brain causing abscesses          e. Histoplasmosis



66. ________ refers to the destruction of microorganisms on living tissue?
    a. Sterilization b. Disinfection c. Antisepsis d. Degerming
    f. Sanitization
67. Which of the following is not one of the factors that affect anti-
    microbial treatments?
    a. the microbe population b. Microbial characteristics
    c. Environmental influences        d. Concentration     e. Exposure time

68. ________ is the disease where a “Chagoma” forms at the site of
    infection?
    a. Leishmaniasis b. Amoebic Dysentery c. African Trypanosomiasis
    d. American Trypanosomiasis     e. Giardiasis

69. __________ is the transfer of an agent by a medium that can infect
    large numbers of people?
    a. Airborne transmission b. Mechanical transmission c. Droplet spread
    d. Common vehicle        e. Biological transmission

70. ________ should be treated with Nifurtimox, while you treat _______
    with Pentostam?
    a. Amoebic dysentery/giardiasis
    b. African Trypanosomiasis/Giardiasis
    c. Leishmaniasis/American Trypanosomiasis
    d. Toxoplasmosis/African Trypanosomiasis
    e. American Trypanosomiasis/Leishmaniasis

71. __________ can be diagnosed by an acid-fast stain on an infected
    person’s feces?
    a. Cryptococcosis b. Blastomycosis c. Cryptosporidiosis
    d. Toxoplasmosis  e. Coccidiodomycosis

72. __________ will produce deep lesions in the gray & white matter of
    the brain?
    a. Cryptosporidiosis b. Coccidiodiomycosis c. Cryptococcosis
    d. Histoplasmosis    e. Toxoplasmosis

73. __________ causes the two types of disese that are termed cutaneous
    and visceral?
    a. Giardiasis b. Leishmaniasis c. Histoplasmosis d. Toxoplasmosis
    f. Blastomycosis
Match the disease with the correct word:

_____   74.   Coccidiodomycosis            a.   Dimorphic fungus
_____   75.   Cryptosporidiosis            b.   Resistant to chlorination
_____   76.   Histoplasmosis               c.   Chaga’s Disease
_____   77.   Blastomycosis                d.   Produces arthrospores
_____   78.   Giardiasis                   e.   Asexual cycle in liver