Biology Class 11 Chapter - 6
Prokaryotes - 18
1.
The causative agent of typhoid fever is?
a) Salmonella typhi
b) St. pneumoniae
c) V. cholerae
d) M. tuberculosis
2.
TB is caused by?
a) St. pneumoniae
b) S. typhi
c) M. tuberculosis
d) V. cholerae
3.
Directly observed treatment short course for TB is done for?
a) 6 months
b) 9 months
c) 2 months
d) 4 months
4.
BCG vaccine is used to prevent?
a) typhoid
b) pneumonia
c) cholera
d) tuberculosis
5.
BCG vaccine contains strain of?
a) dead Mycobacterium tuberculosis
b) dead Mycobacterium bovis
c) live Mycobacterium bovis
d) live Mycobacterium tuberculosis
6.
The bacterium Streptococcus pneumoniae is the causative agent of?
a) cholera
b) TB
c) typhoid
d) pneumonia
7.
Leaf spot of tomato is caused by?
a) Pseudomonas syringae
b) Aplanobacter sepedanium
c) Xanthomonas compestris
d) Xanthomonas oryzae
8.
Aplanobacter sepedanium is the causative agent of?
a) leaf spot of peper
b) leaf spot of potato
c) ring disease of potato
d) leaf spot of tomato
9.
Leaf spot disease of various vegetable crops can be prevented by?
a) non of these
b) use of disease free seeds
c) avoiding contact between pathogen and host
d) both of these
10.
Pseudomonas syringae causes leaf spot of?
a) tobbaco
b) potato
c) peper
d) tomato
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