Question 60 · LDEK · Dental plaque and calculus
Leukotoxin is:
- A. endotoxin secreted by Gram-negative bacteria.
- B. endotoxin secreted by Gram-positive bacteria.
- C. exotoxin secreted by Gram-negative bacteria.
- D. exotoxin secreted by A. actinomycetemcomitans.
- E. none of the above.
Hint
Separate cell-wall components released on lysis from actively secreted proteins, and think of the key pathogen of aggressive periodontitis.
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