ACTINOMYCETES AND NON SPORING ANAEROBES QUIZ

The bacteria which is predominant flora of the human gut is

Actinomyces

Clostridium perfringens

Escherichia coli

Bacteroides

TRUE ANSWER : ?
YOUR ANSWER : ?

The commonest bacterial cause of cervicofacial actinomycosis is

A. viscosus

A. naeslundii

A. israelii

A. meyeri

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Lactobacilli constitute the normal flora of

none of these

post-menopausal vagina

prepubertal vagina

adult vagina

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Which of the following bacteria is moderately saccharolytic?

B gingivalis

Bacteriodes fragilis

B melaninogenicus

B levii

TRUE ANSWER : ?
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The current genus name of a saccharolytic group of Bacteroides is

Bacteroides

Prevotella

None of these

Porphyromonas

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Which of the following bacteria is gram-negative cocci?

Peptococcus

Sporosarcina

Peptostreptococcus

Veillonella

TRUE ANSWER : ?
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The commonest species of Bacteroides in fragilis group, which causes human infection, is

B merdae

B vulgatus

B fragilis

B ovatus

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YOUR ANSWER : ?

Which of the following bacterial colonies fluoresce brick-red in UV light?

B levii

B gingivalis

B melaninogenicus

Bacteroides fragilis

TRUE ANSWER : ?
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Which of the following genera is included in the family Bacteroi-daceae?

Leptotrichia

Fusobacterium

Bacteroides

All of these

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Lactobacilli grow best under

microaerophilic conditions in presence of 5% CO2 and PH6

strict anaerobic conditions

microaerophilic conditions in presence of 2% CO2 and PH4

microaerophilic conditions in presence of 3% CO2 and PH5

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