75. The classic antibody isthe:
A. IgG
B. IgA
C. IgD
D. IgE
78. Lymphocytes without membrane surface markers andthat appear to kill
certain types of tumors and virus infected cells aredesignated:
A. NK cells
B. macrophages
C. B cells
D. T cells
79. The release of chemicals that are responsible forhives, hay fever, shock
and other allergic reactions are secreted by ______under the influence of
IgEs.
A. lymphokines
B. B cells
C. mast cells
D. phagocytes
78. Lymphocytes without membrane surface markers andthat appear to kill
certain types of tumors and virus infected cells aredesignated:
A. NK cells
B. macrophages
C. B cells
D. T cells
79. The release of chemicals that are responsible forhives, hay fever, shock
and other allergic reactions are secreted by ______under the influence of
IgEs.
A. lymphokines
B. B cells
C. mast cells
D. phagocytes
80. The main role of the MHC appears to be importantin:
A. recognition of macrophages
B. preventing anaphylaxis
C. cell to cell communication
D. regulatory inflammation
81. The spread of a disease from its reservoirs mayinvolve insects or other
animals. These insects or animals are knownas:
A. vehicles
B. vectors
C. sentinels
D. indices
82. Inanimate objects capable of transferring infectiousdisease agents are:
A. reservoirs
B. vehicles
C. fomites
D. vectors
83. Which members of a population provide the bestchance of the spread of an infectious disease?
A. the healthy elderly
B. newborns
C. mature adults
D. young children
84. The critical cell in the cell mediated immuneresponse is the:
A. B cell
B. general lymphocyte
C. T cell
D. monocyte
85. Allergies are considered to be _____ because of thenature of the responses.
A. normal immune responses
B. pathologic responses
C. hypersensitivity reactions
D. abnormal
86. A compromised host is one in which:
A. some infection has become lethal
B. the bacteria have mutated
C. the antibiotics are ineffective
D. the natural defense systems are weakened
87. The _____ is a tissue that does not have a residentmicrobial population.
A. spleen
B. intestine
C. skin
D. nasal cavity
88. Viruses require a living cell in order for them tomultiply. Therefore, viruses are:
A. facultative extracellular parasites
B. obligate extracellular parasites
C. obligate intracellular parasites
D. facultative intracellular parasites
89. The diphtheria toxin, which inhibits proteinsynthesis, is an example of:
A. an endotoxin
B. an exoenzyme
C. an endoenzyme
D. an exotoxin
90. Diseases caused by microbial products in which themicrobe itself is not
present in the diseased host are known as:
A. intoxications
B. infections
C. neurotropic
D. septicemic
92. The inability of Bacillus anthracis toinfect fowl is an example of:
A. natural resistance
B. antibiotic synthesis
C. complement activity
D. interferon activity
94. Which of the following chemicals released bybasophils is responsible for the
smooth muscle contraction and mucous secretionassociated with some types of
allergies?
A. heparin
B. histamine
C. epinephrine
D. lymphokines
95. A type of graft (tissue transplant) that takes placefrom one region of the
skin of an individual to another region of the skin ofthe same individual is called
an:
A. allograft
B. xenograft
C. isographt
D. autograft
96. All of the following are effective means ofpreventing infections EXCEPT:
A. vaccination
B. isolation
C. quarantine
D. knowing the endemic rate
100. All of the following diseases can be diagnosed bymeans of an intradermal
test for cell mediated immunity except:
A. leprosy
B. Legionella
C. Histoplasmosis
D. blastomycosis
