Q.1
Escherichia coli and Vibrio cholerae are ________________
  • a) lophotrichous; monotrichous
  • b) amphitrichous; lophotrichous
  • c) peritrichous; monotrichous
  • d) peritrichous; amphitrichous
Q.2
Nitrogen fixation can be done by ______________
  • a) All prokaryotes
  • b) Certain cyanobacteria
  • c) Certain archaebacteria
  • d) None of the mentioned
Q.3
F-plasmid contains ______________
  • a) Only OriV
  • b) Only OriT
  • c) Both OriV and OriT
  • d) None of the mentioned
Q.4
Which is the main building block of cilia?
  • a) Tubulin
  • b) Nexin
  • c) Dyenin
  • d) Actin
Q.5
Which of the following is not a difference between cilia and flagella?
  • a) Cilia is short hairlike; flagella is long thread-like
  • b) Nexin present in cilia; Nexin absent in flagella
  • c) Axoneme present in cilia; Axoneme absent in flagella
  • d) Rapid rotational motion of Flagella; Sweeping slow movement of cilia
Q.6
Which of the following is absent in Gram- negative bacteria and present in Gram- positive bacteria?
  • a) Teichoic acids
  • b) Periplasmic space
  • c) Outer membrane
  • d) Lipopolysaccharide
Q.7
Exotoxins are produced by _______________
  • a) All prokaryotes
  • b) Gram positive bacteria
  • c) Gram negative bacteria
  • d) Archaea
Q.8
Which of the following statements is false?
  • a) Gram negative bacteria is less resistant to physical disruption than Gram positive.
  • b) Gram positive bacteria is inhibited by basic dyes
  • c) Gram negative bacteria cell wall is thin and single layered.
  • d) Gram negative bacteria is more resistant to antibiotics than Gram positive.
Q.9
Which of the following are a Gram negative bacteria?
  • a) Neisseria gonorrheae
  • b) Mycoplasma pneumonia
  • c) Cornybacterium diptheriae
  • d) Streptococcus pyogenes
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