1. All the bacteria fix nitrogen except
a) Rhizobium
b) E.coli
c) Azotobacter
d) cyanobacteria
2. Differential
staining of bacteria on Gram staining is due to
a) difference in the cell wall layer components of Gram positive and
Gram negative bacteria
b) difference in the cell structure of Gram positive and
Gram negative bacteria
c) difference in the mode of nutrition of Gram positive
and Gram negative bacteria
d) none of the above
3. The
iodine used in Gram staining serves as a
a) chelator
b) catalyst
c) mordant
d) cofactor
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4. Which
among the following is called as filamentous bacteria
a) Mycoplasmas
b) Spirochetes
c) Actinomycetes
d) Vibrios
5. Which
of the following group of bacteria is considered as a link between bacteria and
virus
a) Mycoplasmas
b) Spirochaetes
c) Actinomycetes
d) Vibrios
6. Cork-screw
shaped forms of bacteria are
a) bacilli
b) stalked bacteria
c) spirochaetes
d) actinomycetes
7. The
ability of bacteria to change their morphological form frequently is termed as
a) lysogeny
b) pleomorphism
c) alteromorphism
d) none of these
a) chitin
b) cellulose
c) dextran
d) peptidoglycan
9. Bacterial flagella is made up of
a) microtubules
b) tubulin
c) flagellin
d) spinin
10. Surface
appendage of bacteria meant for cell-cell attachment during conjugation is
a) pili
b) flagella
c) spinae
d) cilia
11. Spinae
is rigid tubular appendages in
a) Gram positive bacteria
b) Gram negative bacteria
c) both a and b
d) actinomycetes
12. The
region where bacterial genome resides is termed as
a) nucleus
b) cytoplasm
c) nucleoid
d) ribosome free region
13. Bacterial chromosome is
a) single stranded and circular
b) double stranded and circular
c) single stranded and linear
d) double stranded and linear
14. Extra chromosomal, circular, double stranded, self-replicating DNA
molecule in bacteria is called
a) cosmid
b) plasmid
c) phagemid
d) phasmid
15. Membraneous
infolding in bacteria that initiate DNA replication is
a) mesosomes
b) carboxysome
c) magnetosome
d) nulcleosome
Learn more:
- Bacterial Cell Diagram Quiz
- Bacterial Cell wall Quiz
- Multiple Choice Questions on Bacterial Reproduction
- Quiz on Bacteria
- Multiple Choice Questions on Gram Stainin
1-b
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2-a
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3-c
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4-c
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5-a
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6-c
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7-b
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8-d
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9-c
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10-a
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11-a
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12-c
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13-b
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14-b
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15-a
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