MYCOBACTERIUM QUIZ

A positive Mantoux test indicates an area of induration of

4-9 mm in diameter

1-4 mm in diameter

None of these

10 mm or more in diameter

TRUE ANSWER : ?
YOUR ANSWER : ?

The bacteria which cause(s) tuberculosis in man is/are

M bovis

Mycobacterium tuberculosis

M africanum

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Members of the genus Mycobacterium are

non-motile

all of these

acid-fast

gram-positive

TRUE ANSWER : ?
YOUR ANSWER : ?

Rough and buff colonies on LJ medium are characteristic of

M bovis

M chelonei

Mycobacterium tuberculosis

M fortuitum

TRUE ANSWER : ?
YOUR ANSWER : ?

Culture of tubercle bacilli may be positive if number of bacteria in the specimen is

as few as 10-100 per ml

as few as 125-200 per ml

as few as 5-9 per ml

as few as 1-4 per ml

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following bacteria is sensitive to pyrazinamide?

None of these

M fortuitum

Mycobacterium tuberculosis

M bovis

TRUE ANSWER : ?
YOUR ANSWER : ?

Humans become infected with Mycobacterium tuberculosis most frequently by

ingestion

inoculation

inhalation

contact

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following bacteria is susceptible to thiophen-2-carboxylic acid hydrazide?

M chelonei

Mycobacterium tuberculosis

M bovis

M fortuitum

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the phage types of Mycobacterium tuberculosis occurs most frequently in India?

Type A

Type C

Type I

Type B

TRUE ANSWER : ?
YOUR ANSWER : ?

Example of a Saprophytic bacteria is

Msmegmatis

Mycobacterium chelonei

M marinum

M xenopi

TRUE ANSWER : ?
YOUR ANSWER : ?

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