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Neisseria Pathogenic Species Quiz

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Questions and Answers

Which of the following species of Neisseria is known to be a rod shape?

Neisseria weaveri

Neisseria gonorrhoeae

Neisseria meningitidis

Neisseria elongata (correct)

Which of the following species of Neisseria is catalase negative?

Neisseria meningitidis

Neisseria bacilliformis (correct)

Neisseria elongata

Neisseria weaveri

In what type of environment do many Neisseria species show optimal growth?

Oxygen-rich environment

High-carbon dioxide environment (correct)

High-temperature environment

Dry environment

Which of the following genera is part of the family Neisseriaceae along with Neisseria?

Kingella Signup and view all the answers

Which species is always considered pathogenic and not part of the normal biota?

Neisseria gonorrhoeae Signup and view all the answers

What characteristic of Neisseria spp. contributes to their virulence by competing with the human host for iron?

Ability to bind human transferrin to specific surface receptors Signup and view all the answers

Which Neisseria species is considered a commensal in the upper respiratory tract of dogs but has been isolated from dog bites in humans?

N. weaveri Signup and view all the answers

What differentiates Lipooligosaccharide (LOS) found in pathogenic Neisseria spp. from the lipopolysaccharide in most gram-negative bacilli?

Lower-molecular-weight and loosely attached to peptidoglycan Signup and view all the answers

What is the role of pili in Neisseria spp. infections?

Inhibiting phagocytosis by neutrophils Signup and view all the answers

Which Neisseria colony types are considered virulent forms due to the presence of pili?

T1 and T2 Signup and view all the answers