Neisseria Flashcards

1
Q

Que tipo de forma, estructura y gram tiene la neisseria?

A

(Diplococos) Cocobacilos gram - en parejas y en forma de grano de cafe

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2
Q

Es neisseria aerobia o anaerobia?

A

Aerobia

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3
Q

Es una bacteria movil o inmovil?

A

MOVIL

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4
Q

Que tipo de enzimas tienen?

A

Oxidasa y Catalasa positivas

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5
Q

Que enzimas oxida esta bacteria?

A

Glucosa (meningococo y gonococo)
Maltasa (meningococo)

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6
Q

Que tipos de neisserias existen?

A

N. meningitidis
N. gonorrhoae

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7
Q

Cual de las bacterias es patogenica y cual es que colonice un poco nuestro cuerpo?

A

Patogenica es gonococo
Colonizante es meningococo

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8
Q

Donde colonizan en nuestro cuerpo el meningococo?

A

Nasofaringe

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9
Q

Que cultivo requiere el gonococo para crecer?

A

Agar chocolate

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10
Q

Que otra cosa ademas de enzimas oxidan la neisseria?

A

A los carbohidratos

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11
Q

Cuales son los factores de virulencia y sus caracteristicas?

A

Capsula de polisacaridos (meningococo)

13 serotipos (A, B, C, X, Y, W135)

Pili sexuales movimientos, adhesion, MGE (elementos geneticos moviles)
Determinantes de virulencia
Gonococo

Proteinas de membrana:
OPA: porinas de opacidad
RMP: proteinas y reduccion modificabble

Lipooligosacaridos (LOS): sin region somatica O, perocontiene lipido A, responsable de respuesta antigenica

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12
Q

Que tipo de agar se utiliza para el gonococo?

A

Thayer martin medium y es selectivo

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