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Exam (elaborations)

EXAMEN DE BACTERIOLOGIA

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Es un examen final en el que se añaden preguntas y respuestas acerca de algunas bacterias y sus enfermedades

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  • March 25, 2021
  • 2
  • 2020/2021
  • Exam (elaborations)
  • Questions & answers
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1. Es el mecanismo que utiliza el Staphylococcus aureus para presentar
resistencia a meticilina.
a) Hidrolizando el antibiótico mediante B-lactamasas
b) Modificando la unión del antibiótico a la PBP
c) Evitando la interaccion entre el antibiótico y la molécula de PBP
d) Ninguna de las anteriores
2. Es un medicamento aislado a partir de Bacillus licheniformis.
a) Bacitracina
b) Penicilina
c) Trimetroprim
d) Isoniacina
3. Mecanismo de acción de las quinolonas.
a) Inhiben las enzimas topoisomerasas de ADN del tipo II (la subunidad A
de la grasa en las bacterias Gram negativas).
b) Es consecuencia de la reducción de su grupo nitrógeno por parte de la
nitroreductasa bacteriana, la cual da lugar a metabolitos citotóxicos que
alteran la actividad del ADN bacteriano.
c) Se une a la polimerasa ARN dependiente de ADN e inhibe el inicio de la
síntesis de ARN.
d) Inhibe las enzimas topoisomerasas de tipo IV de las bacterias Gram
positivas.
e) a y d
4. ¿Cuál es la bacteria causante de la Fiebre Q?
a) Chlamydia psittaci
b) Coxiella burnetti
c) Legionella pneumophila
d) Mycoplasma pneumoniae
e) Chlamydia pneumoniae
5. Vía de transmisión por la cual se produce una infección respiratoria de
Zoonosis
a) Transmisión de persona a persona
b) Por una fuente ambiental
c) Adquirida a partir de una fuente animal
d) Aparición de un patógeno
e) Ninguna de las anteriores
6. Microorganismo causante de la Faringitis, una infección respiratoria
a) Staphylococcus aureus
b) Chlamydia pneumoniae
c) Estreptococos del grupo A
d) a y c
e) b y c
7. Reactivo utilizado para realizar la prueba de Oxidasa
a) Plasma liofilizado de conejo con EDTA

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