MICROBIOLOGY COMPLETE
QUESTIONS AND ANSWERS
Activated macrophages are required in elimination of infections
caused by
a) intracelular bacteria
b) extracelular microbes
c) both above mentioned
d) nothing of above mentioned - CORRECT ANSWER-b
Antibodies of which of mentioned classes cross p...
Activated macrophages are required in elimination of infections
caused by
a) intracelular bacteria
b) extracelular microbes
c) both above mentioned
d) nothing of above mentioned - CORRECT ANSWER-b
Antibodies of which of mentioned classes cross placental
barriere
a) IgG
b) IgM
c) IgA
d) IgD - CORRECT ANSWER-a
The number of polypeptid chains is the highest in the molecule
of
a) IgG
b) IgM
c) IgE
d) IgD - CORRECT ANSWER-b
,Complement fixation reaction (CFR)
a) is the reaction during which the complement cascade is
activated
b) is reaction to measure the concentration of the complement
in the serum of the patient
c) is serological reaction to detect antibodies
d) is reaction in vitro to determine the level of activated
complement - CORRECT ANSWER-c
Virulence of the microbe with the LD 50 = 1 x 103
a) is lower than that of the microbe with the LD 50 = 1 x 10 5
b) is higher than that of the microbe with the LD 50 = 1 x 10 5
c) is not determined by this formule
d) means that indicated number of microbes kills 50 of 1000
exposed - CORRECT ANSWER-b
Time period between exposition and clinical signs is in
hypersensitivity of the type I
a) shorter than in hypersensitivite of the type IV
b) longer than in the hypersensitivity of the type IV
c) equal as in hypersensitivity of the type IV
d) cannot be compare with the time period in hypersensitivity of
the type IV - CORRECT ANSWER-a
Antibodies are required for the presentation of clinical signs in
the hypersensitivity of the type (types):
a) I and IV
b) all four types
c) I, II and III
d) only type type I - CORRECT ANSWER-c
Endotoxin :
a) Is very immunogenic
b) Stimulates the production of precipiting antibodies
c) Is a part of Gram negative cell wall
d) Is the cause of sepses - CORRECT ANSWER-c
,Antitoxin
a) Is antibody against toxin
b) Is toxin deprived of the toxicity
c) Is immunogenicity deprived toxin
d) Means the same as toxoid - CORRECT ANSWER-a
Immunoglobulins with monomeric structure (1 polypeptid chain)
are:
a) IgG, IgE, IgD
b) IgG, IgA, IgD, IgE
c) IgM, IgA,
d) IgG, IgE - CORRECT ANSWER-a
Capsule in encapsulated strains of Haemophilus influenzae,
Streptococcus pneumoniae and Neisseria meningitidis is the
tool of
a) pathogenity
b) virulence
c) immunity
d) infecion - CORRECT ANSWER-b
Exotoxin of Clostridium botulinum is the tool of:
a) pathogenity
b) virulence
c) immunity
d) infection - CORRECT ANSWER-a
. Humoral immunity has the crucial role in protection against
a) diphtheria
b) tuberculosis
c) AIDS
d) Skin mycoses - CORRECT ANSWER-d
Humoral immunity has the crucial role in protection against
a) diphtheria
b) tuberculosis
c) AIDS
, d) Skin mycoses - CORRECT ANSWER-d
Against facultative pathogens we are protected mainly by
a) Tools of nonspecific immunity
b) Tools of specific humoral immunity
c) Tools of specific cell immunity
d) T helper lymfocytes - CORRECT ANSWER-a
Penicilin antibiotics are the less toxic because
a) They are products of fungi
b) They have a very simple chemical structure
c) Cannot cross the intestinal mucouse membrane
d) Are active on structure that are situated at the level of
bacterial cell wal - CORRECT ANSWER-d
Invasive disease is
a) bacterial meningitis caused by encapsulated strain
b) skin abscess dysenteria
c) diphtheria - CORRECT ANSWER-a
Which of the mentioned posibilities indicates the titre of
antibodies
a) 1:160
b) 160
c) 116o
d) 1x160 - CORRECT ANSWER-a
Which way of writing the name of bacteria is scientifically and
formaly correct (e.g. in your book of microbiology)
a) Staphylococcus aureus (in italics)
b) Staphylococcus Aureus
c) Staphylococcus aureus
d) Staphylococcus Aureus - CORRECT ANSWER-a
Cell wall of Gram positive bacteria contains
a) peptidoglycan
b) chitin
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