Explore topic-wise MCQs in Microbiology.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.

1.

The X factor and/or the V factor is required by which genus of bacteria?

A. Pasteurella
B. Haemophilus
C. Actinobacillus
D. Zymomonas
Answer» C. Actinobacillus
2.

Among the given families, which family contains organisms that are non-motile?

A. Enterobacteriaceae
B. Vibrionaceae
C. Pseudomonadaceae
D. Pasteurellaceae
Answer» E.
3.

Which of the following genus shows the characteristic of bioluminescence?

A. Aeromonas
B. Zymomonas
C. Vibrio
D. Haemophilus
Answer» D. Haemophilus
4.

The family Vibrionaceae is _________________

A. oxidase-positive
B. oxidase-negative
C. coccus shaped
D. non-motile
Answer» B. oxidase-negative
5.

Which of the following is the causative agent of the plague?

A. Y.enterocolitica
B. Y.pestis
C. P.mirabilis
D. E.coli
Answer» C. P.mirabilis
6.

WHICH_OF_THE_FOLLOWING_GENUS_SHOWS_THE_CHARACTERISTIC_OF_BIOLUMINESCENCE??$

A. Aeromonas
B. Zymomonas
C. Vibrio
D. Haemophilus
Answer» D. Haemophilus
7.

The X factor and/or the V factor is required by which genus of bacteria?$

A. Pasteurella
B. Haemophilus
C. Actinobacillus
D. Zymomonas
Answer» C. Actinobacillus
8.

Among the given families, which family contains organisms that are non-motile?

A. Enterobacteriaceae
B. Vibrionaceae
C. Pseudomonadaceae
D. Pasteurellaceae
Answer» E.
9.

The family Vibrionaceae is ________________?

A. oxidase-positive
B. oxidase-negative
C. coccus shaped
D. non-motile
Answer» B. oxidase-negative
10.

Which of the following is the causative agent of plague?

A. Y.enterocolitica
B. Y.pestis
C. P.mirabilis
D. E.coli
Answer» C. P.mirabilis
11.

Which of the following genus of bacteria under the family Enterobacteriaceae is mainly associated with plants?

A. Erwinia
B. Serratia
C. Proteus
D. Yersinia
Answer» B. Serratia
12.

Enterobacter sp. gives negative result for Voges-Proskauer test.

A. True
B. False
Answer» C.
13.

Which of the following genus of bacteria causes gastroenteritis in humans?

A. Salmonella
B. Enterobacter
C. Escherichia
D. Shigella
Answer» D. Shigella
14.

Enterobacteriaceae possesses endoflagella.

A. True
B. False
Answer» C.
15.

What is the cell shape of the organisms belonging to the family Enterobacteriaceae?

A. vibrio
B. coccus
C. bacillus
D. straight rod
Answer» E.
16.

The cell diameter of bacteria belonging to family Enterobacteriaceae is ____________

A. 1 m
B. 1 cm
C. .3-1.5 micrometre
D. 5 micrometre
Answer» D. 5 micrometre