1. C. Clostridium perfringens causes myonecrosis; Clostridium perfringens is a soil born
bacteria which produce exotoxin and cause this myonecrosis.
2. D. Intact skin, flushing action of the urinary tract and cytokines are non-specific means of
defense against invasion by microbes.
3. D. Complement is activated by an interaction between antibody and antigen, a microbial
polysaccharide such as found in the cell wall and lectin binding with mannose on the bacterial
cell surface.
4. C. Naturally acquired passive immunity is a type of immunity is transferred from mother to
fetus across the placenta.
5. A. Endotoxins are produced by gram negative bacteria which is a lipopolysaccharide and is
heat stable.
6. C. Adherence of organism to the tissue may not cause disease.
7. D. Flora of the skin includes Corynebacteria spp (diptheroids), Propionibacterium acnes and
Staphylococcus spp.
Solution
1. C. Clostridium perfringens causes myonecrosis; Clostridium perfringens is a soil born
bacteria which produce exotoxin and cause this myonecrosis.
2. D. Intact skin, flushing action of the urinary tract and cytokines are non-specific means of
defense against invasion by microbes.
3. D. Complement is activated by an interaction between antibody and antigen, a microbial
polysaccharide such as found in the cell wall and lectin binding with mannose on the bacterial
cell surface.
4. C. Naturally acquired passive immunity is a type of immunity is transferred from mother to
fetus across the placenta.
5. A. Endotoxins are produced by gram negative bacteria which is a lipopolysaccharide and is
heat stable.
6. C. Adherence of organism to the tissue may not cause disease.
7. D. Flora of the skin includes Corynebacteria spp (diptheroids), Propionibacterium acnes and
Staphylococcus spp..
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1. C. Clostridium perfringens causes myonecrosis; Clostridium perfr.pdf
1. 1. C. Clostridium perfringens causes myonecrosis; Clostridium perfringens is a soil born
bacteria which produce exotoxin and cause this myonecrosis.
2. D. Intact skin, flushing action of the urinary tract and cytokines are non-specific means of
defense against invasion by microbes.
3. D. Complement is activated by an interaction between antibody and antigen, a microbial
polysaccharide such as found in the cell wall and lectin binding with mannose on the bacterial
cell surface.
4. C. Naturally acquired passive immunity is a type of immunity is transferred from mother to
fetus across the placenta.
5. A. Endotoxins are produced by gram negative bacteria which is a lipopolysaccharide and is
heat stable.
6. C. Adherence of organism to the tissue may not cause disease.
7. D. Flora of the skin includes Corynebacteria spp (diptheroids), Propionibacterium acnes and
Staphylococcus spp.
Solution
1. C. Clostridium perfringens causes myonecrosis; Clostridium perfringens is a soil born
bacteria which produce exotoxin and cause this myonecrosis.
2. D. Intact skin, flushing action of the urinary tract and cytokines are non-specific means of
defense against invasion by microbes.
3. D. Complement is activated by an interaction between antibody and antigen, a microbial
polysaccharide such as found in the cell wall and lectin binding with mannose on the bacterial
cell surface.
4. C. Naturally acquired passive immunity is a type of immunity is transferred from mother to
fetus across the placenta.
5. A. Endotoxins are produced by gram negative bacteria which is a lipopolysaccharide and is
heat stable.
6. C. Adherence of organism to the tissue may not cause disease.
7. D. Flora of the skin includes Corynebacteria spp (diptheroids), Propionibacterium acnes and
Staphylococcus spp.
