Which of the following is obligate aerobe ?

Related Mcqs:

1. An oxidase-positive, gram-negative rod which produces a bluish-green pigment has been grown in culture from a swab obtained from an infected burn wound. This organism is susceptible to gentamicin, ticarcillin and tobramicin, but resistant to all the other antibiotics which of the following organisms is it likely to be ?

   A. Escherichia coli
   B. Klebsiella pnemoniae
   C. Proteus miribilis
   D. Pseudomonas aeruginosa

2. Toxic shock syndrome is due to the following virulence factor_____________?

   A. M protein
   B. Pyrogenic exotoxin
   C. Streptolysin 0
   D. Carbohydrate cell wall

3. The virulence factors of Neisseria gonorrhea include all of the following except____________?

   A. Outer membrane proteins
   B. IgA Protease
   C. M-Proteins
   D. Pili

4. Chlamydia causes all of the following except________________?

   A. Trachoma
   B. Non-gonococcal urethritis
   C. Pneumonia
   D. Parotitis

5. The bacterial cell wall has all of the following properties except______________?

   A. It consists of a mixed polymer called peptidoglycon
   B. It is the structure principally responsible for the reaction of gram staining
   C. It is a unique flexible plastic structure
   D. It contains D-isomers of amino acids

6. One of the following is a zoonotic disease_____________?

   A. Anthrax
   B. Typhoid
   C. Bacillary dysentery
   D. Cholera

7. Which of the following structures, found external to the bacterial cell wall, are involved in bacterial attachment to cell surfaces?

   A. Capsule
   B. Flagella
   C. Pili
   D. Mesosomes

8. Which of the following are non-spore forming anaerobic bacteria that asume major significance in disease processes________________?

   A. Bacteroides fragilis
   B. Fusobacterium nucleatum
   C. Peptostreptococcus anaerobius
   D. Actinomyces Israeli
   E. All of the above

9. A veterinary doctor had pyrexia of unknown origin His blood culture in special laboratory media was positive for gram negative short bacilli which was oxidase positive. Which one of the following is the likely organism grown in culture ?

   A. Pasturella spp
   B. Francisella spp
   C. Bartonella spp
   D. Brucella spp

10. Each of the following viruses possesses an outer lipoprotein envelope except_____________?

    A. Varicella Zoster Virus
    B. Papilloma Virus
    C. Influenza Virus
    D. Human immunodeficiency virus