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Quiz 1
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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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