Explore topic-wise MCQs in Microbiology.

This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.

1.

Anthramycin is which of the following type of antibiotic?

A. Antiviral
B. Antitumor
C. Antifungal
D. Antibacterial
Answer» C. Antifungal
2.

Which of the following is effective in the control of tuberculosis in humans?

A. Nitrofurans
B. Nalidixic Acid
C. Sibromycin
D. Isoniazid
Answer» E.
3.

Amantadine is very effective against influenza A virus.

A. True
B. False
Answer» B. False
4.

Which of the following has its antiviral action attributed to the interference of protein synthesis?

A. Amantadine
B. Interferons
C. Acycloguanosine
D. 5 -iododeoxyuridine
Answer» C. Acycloguanosine
5.

Acycloguanosine is a nucleoside analog which is active against ___________________

A. Influenza A virus
B. HIV virus
C. Herpes virus
D. Influenza B virus
Answer» D. Influenza B virus
6.

Griseofulvin is useful in the therapy of nonsystemic fungal infections.

A. True
B. False
Answer» C.
7.

Nystatin is produced from the strain _____________________

A. Streptomyces noursei
B. Streptomyces aureofaciens
C. Streptomyces kanamyceticus
D. Streptomyces fradiae
Answer» B. Streptomyces aureofaciens
8.

Antibiotics are not effective against plant pathogens.

A. True
B. False
Answer» C.
9.

Which of the following antibiotic have a sparing effect on the B12 in the diet?

A. Streptomycin
B. Tetracycline
C. Anthramycin
D. Chloramphenicol
Answer» B. Tetracycline
10.

Pigs respond dramatically to the addition of which of the following antibiotics to their diet?

A. aureomycin
B. terramycin
C. penicillin
D. oxytetracycline
Answer» E.
11.

Zone of inhibition is observed in tube-dilution method.

A. True
B. False
Answer» C.
12.

The international unit of penicillin is defined by how much amount of International Standard?

A. 1 mg
B. 0.262 g
C. 0.5988 g
D. 0.5 mg
Answer» D. 0.5 mg
13.

Which of the following is the most accurate method for microbial assay of antibiotics?

A. Physical assay
B. Chemical assay
C. Biological assay
D. Chemical and biological assay
Answer» C. Biological assay