Top 1000+ Solved Microbiology MCQ Questions Answer
Q. Which of the following does not inhibitcell wall synthesis?
a. Penicillin
b. Carbenicillin
c. Amikacin
d. Vancomycin
Q. The anti tumor antibiotics act by inhibiting
a. Cell wall synthesis
b. RNA synthesis
c. Cell membrane synthesis
d. The DNA structure & function
Q. Drug resistance to sulphonamides is dueto
a. Production of PABA
b. Folic acid synthetase
c. Drug alteration
d. Low affinity for drug synthesis by bacteria
Q. Drug of choice for methicillin resistantstaph. Aureus is
a. Ampicillin
b. Erythromycin
c. Neomycin
d. Vancomycin
Q. Nalidixic acid activity is due to
a. The inhibition of DNA synthesis
b. Inhibition of protein synthesis
c. The inhibition of cell wall synthesis
d. Both b and c
Q. The best test for the susceptibility of a microorganism to antibiotics and other chemotherapeutic agents:
a. Tube-dilution test
b. Paper-disc test
c. Both a and b
d. None of these
Q. The smallest amount of chemotherapeutic agents required to inhibit the growth of the organism in Vitro is known as
a. MIC (minimum inhibitory concentration)
b. Thermal death point (TDP)
c. Death rate
d. None of these
Q. Clear-zones formation around antibiotic disc is due to
a. Growth of the bacterium surrounding of the disc
b. Lysis of the bacterial cells surrounding the disc
c. The destruction of paper disc (antibiotic)
d. None of these
Q. Vancomycin is obtained from
a. Streptococcus species
b. Aspergillus niger
c. Streptomyces orientalis
d. Bacillus anthracis
Q. Epidemic pleurodynia and myocarditis ofnew born infants are both caused by
a. Group B cox sack virus
b. Reovirus
c. Polyomavirus
d. Cytomegalovirus
Q. Human papillomavirus causes followingtumors:
a. Hepatic carcinoma
b. Cervical cancer
c. Condyloma acuminatum
d. Plantar wart
Q. Viral infection is caused due to
a. Acute self limited illness
b. No apparent symptoms
c. Chronic infection with persistent viral shedding
d. All of these