Systemic Bacteriology MCQs
16. Question
The culture medium for Coryneacterium diptheriae is
Loeffler’s serum slope
McConkey agar
Sabouraud’s agar
Lowenstein-Jensen medium
Answer
17. Question
Diphtheria toxin acts by
Inhibiting acetylcholine release
Inhibiting glucose transport
Increasing levels of cyclic AMP
Inhibiting protein synthesis
Answer
18. Question
All of the following statements about Corynebacterium diphtheriae are true EXCEPT
Toxin is responsible for local reaction
Iron in surrounding is essentioal for growth
Phage is essential for toxin production
Protein synthesis is affected by group A chain
Answer
19. Question
One of the following statements regarding diphtheria toxin is true:
Toxin is produced by all corynebacteria
Positive Schick test suggest immunity
Toxin production is influenced by critical concentration of iron
It is an endotoxin
Answer
20. Question
Elek’s gel preciptiation test is for
Gonococcus
Diphtheria
Hemophillus
Anthrax
Answer