Explore topic-wise MCQs in Microbiology.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following cross-reacts with cell wall carbohydrate of ?

A. Cardiac valves
B. Synovial fluid
C. Myocardium
D. Vascular intima
Answer» B. Synovial fluid
2.

can be differentiated from other haemolytic on the basis of

A. Bacitracin sensitivity
B. Erythromycin sensitivity
C. Aminoglycosides sensitivity
D. Penicillin sensitivity
Answer» B. Erythromycin sensitivity
3.

Cell wall protein of with human

A. synovial fluid
B. cardiac valves
C. myocardium
D. vascular intima
Answer» D. vascular intima
4.

Which of the following condition is non-suppurative sequelae of infections?

A. Acute rheumatic fever
B. Acute glomerulonephritis
C. Erythema nodosum
D. All of these
Answer» E.
5.

Crystal violet blood agar is a selective medium for

A. <i> -haemolytic</i>
B. streptococci
C. <i>Staphylococcus aureus</i>
D. <i>Corynebacterium diphtheriae</i>
E. <i>Mycobacterium tuberculosis</i>
Answer» B. streptococci
6.

Streptolysin O is

A. antigenic
B. oxygen-labile
C. heat-labile
D. all of these
Answer» E.
7.

Individuals suffering from primary atypical pneumonia have agglutinins to

A. <i>Streptococcus MG </i>
B. <i> S avium</i>
C. <i>S mutans</i>
D. <i>Enterococcus faecalis</i>
Answer» B. <i> S avium</i>
8.

Which of the following test(s) may establish retrospective diagnosis of streptococcal infection?

A. Anti-DNase B test
B. ASO test
C. Streptozyme test
D. All of these
Answer» E.
9.

The bacterial sore throat is caused by

A. <i>Staphylococcus aureus</i>
B. <i>Haemophilus spp</i>
C. <i>Streptococcus pyogenes</i>
D. <i>Mycoplasma pneumoniae</i>
Answer» D. <i>Mycoplasma pneumoniae</i>
10.

The bacteria involved in the production of dental caries is/are

A. <i>Streptococcus mutans</i>
B. <i>S sanguis</i>
C. Both (a) and (b)
D. <i>Streptococcus pyogenes</i>
Answer» D. <i>Streptococcus pyogenes</i>
11.

Which of the following test indicates the susceptibility to streptococcal pyrogenic exotoxin?

A. Schick test
B. Disk test
C. ASO test
D. Precipitation test
Answer» C. ASO test
12.

Which of the following cross-reacts with cell wall carbohydrate of Streptococcus pyogenes?

A. Cardiac valves
B. Synovial fluid
C. Myocardium
D. Vascular intima
Answer» B. Synovial fluid
13.

Streptococcus pyogenes can be differentiated from other haemolytic Streptococci on the basis of

A. Bacitracin sensitivity
B. Erythromycin sensitivity
C. Aminoglycosides sensitivity
D. Penicillin sensitivity
Answer» B. Erythromycin sensitivity
14.

Which of the following condition is non-suppurative sequelae of Streptococcus pyogenes infections?

A. Acute rheumatic fever
B. Acute glomerulonephritis
C. Erythema nodosum
D. All of these
Answer» E.
15.

Cell wall protein of Streptococcus pyogenes crossreacts with human

A. synovial fluid
B. cardiac valves
C. myocardium
D. vascular intima
Answer» D. vascular intima