Microbiology MCQ //9

   41.  Point out the Zymogenous bacteria:

a.      Pseudomonas

b.      Cytophaga

c.       Proteus

d.      Streptococcus

   42.  Exotoxin producing food poisonings organism is :

a.      Clostridium botulinum

b.      Staphylococcus aureus

c.       Bacillus cereus

d.      Serratia

   43.  When two organisms cooperatively live together, they are known as:

a.      Antagonistic

b.      Synergistic

c.       Commensals

d.      Parasitism

   44.  Which of the following genera fix nitrogen freely:

a.      Bradrynhizobium

b.      Frankia

c.       Colothrix

d.      Rhizobium

   45.  Fungal pathogens which transmit from soil to humans:

a.      Trichophyton

b.      Phytophthora

c.       Alternaria

d.      Streptomyces spp.