Top 1000+ Solved Microbiology MCQ Questions Answer

From 556 to 570 of 879

Q. E.coli produces the following toxins:

a. Enterotoxin

b. Endotoxins

c. Verocytotoxins

d. Hemolysins

  • b. Endotoxins

Q. Diphtheria is caused by

a. Corynebacterium diphtheriae

b. C. Bovis

c. C. Jeikeium

d. C. equi

  • a. Corynebacterium diphtheriae

Q. Causative organism of diphtheria wasfirst demonstrated by

a. Robert Koch

b. Lois Pasteur

c. Klebs and Loeffler

d. Volhard and Fahr

  • c. Klebs and Loeffler

Q. Coryne bacterium is

a. Gram positive

b. Resistant to Penicillin

c. Gram negative

d. Resistant to Chloramphenicol

  • a. Gram positive

Q. C. diphtheriae consists of

a. Startch granules

b. Polymeta phosphate granules

c. Lipid granules

d. None of these

  • b. Polymeta phosphate granules

Q. The incubation period of diphtheriae is

a. Upto 2 week

b. Upto 1 week

c. 2–4 weeks

d. None of these

  • c. 2–4 weeks

Q. Diphtheria virulence test is

a. Ascoli’s thermoprecipitation test

b. Eleck’s gel precipitation test

c. C.R.P test

d. M.R.T. test

  • b. Eleck’s gel precipitation test

Q. Diptheria toxoid is prepared by using

a. Aldehyde

b. Formalin

c. Phenols

d. None of these

  • b. Formalin

Q. Diphtheria is an example of

a. Bacteraemia

b. Pyaemia

c. Septicemia

d. Toxaemia

  • d. Toxaemia

Q. Main symptom of tuberculosis is

a. Tubercle formation

b. Liquid formation

c. Both a and b

d. None of these

  • a. Tubercle formation

Q. BCG vaccine is for the prevention of

a. Brucellosi

b. Diphtheria

c. Botulism

d. Tuberculosis

  • d. Tuberculosis

Q. Dose of BCG vaccine is

a. 0.2–0.5 ml

b. 0.1 ml

c. 0.05 ml

d. 0.2 to 0.3 ml

  • b. 0.1 ml

Q. Negative Mantoux test is important in

a. Pulmonary Koch’s syndrome

b. Sarcoidosis

c. Carcinoma bronchus

d. Lymphoma

  • a. Pulmonary Koch’s syndrome

Q. Bacilli Calmette Guerin (BCG) contains theavirulent strains of

a. Human tubercle bacilli

b. Avian tubercle bacilli

c. Bovine tubercle bacilli

d. A typical mycobacteria

  • c. Bovine tubercle bacilli

Q. Drugs used against tuberculosis (TB) are

a. Refampicin, Isoniazid

b. Pyrazinamide, Streptomycin

c. Both a and b

d. None of these

  • c. Both a and b
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