Which of the following bacteria is gram-negative cocci? Veillonella Peptococcus

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Question
Which of the following bacteria is gram-negative cocci?
Options
A. Veillonella
B. Peptococcus
C. Peptostreptococcus
D. Sporosarcina

Correct Answer

Veillonella

Actinomycetes and Non Sporing Anaerobes problems

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1. The commonest species of Bacteroides in fragilis group, which causes human infection, is
Options
A. B vulgatus
B. B fragilis
C. B ovatus
D. B merdae

Discuss

Correct Answer: B fragilis

2. Lactobacilli grow best under
Options
A. strict anaerobic conditions
B. microaerophilic conditions in presence of 5% CO₂ and PH6
C. microaerophilic conditions in presence of 3% CO₂ and PH5
D. microaerophilic conditions in presence of 2% CO₂ and PH4

Discuss

Correct Answer: microaerophilic conditions in presence of 5% CO₂ and PH6

3. Which of the following bacterial colonies fluoresce brick-red in UV light?
Options
A. B gingivalis
B. B melaninogenicus
C. Bacteroides fragilis
D. B levii

Discuss

Correct Answer: B melaninogenicus

4. Colonies resembling molar teeth are produced by
Options
A. Nocardia brasiliensis
B. N. asteroids
C. Actinomyces israelii
D. Actinomadura madurae

Discuss

Correct Answer: Actinomyces israelii

5. The current genus name of a saccharolytic group of Bacteroides is
Options
A. Porphyromonas
B. Bacteroides
C. Prevotella
D. None of these

Discuss

Correct Answer: Porphyromonas

6. The most pathogenic Brucella spp for man is
Options
A. B melitensis
B. B abortus
C. B suis
D. B canis

Discuss

Correct Answer: B melitensis

7. Which of the following can be identified by milk ring test?
Options
A. Brucellosis
B. Salmonellosis
C. Bovine tuberculosis
D. All of these

Discuss

Correct Answer: Brucellosis

8. For brucellosis, 2 ME agglutination test is used to identify
Options
A. IgG
B. IgM
C. IgA
D. IgE

Discuss

Correct Answer: IgG

9. Brucella are
Options
A. Cocci
B. Rods
C. Cocobacilli
D. Very short rods

Discuss

Correct Answer: Very short rods

10. Agglutination test for Brucella mainly identifies which class of antibodies?
Options
A. IgG
B. IgM
C. IgA
D. IgE

Discuss

Correct Answer: IgM

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Which of the following bacteria is gram-negative cocci?

Actinomycetes and Non Sporing Anaerobes problems

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