Porphyromonas gingivalis is a gram-negative bacterium found in the oral cavity that is negatively affected by the presence of oxygen. What term best describes this bacteria?
Correct answer: D. Obligate anaerobe
- A. Facultative anaerobe
- B. Aerotolerant anaerobe
- C. Obligate aerobe
- D. Obligate anaerobe
Explanation
Obligate anaerobes are microorganisms killed by normal atmospheric concentrations of oxygen.
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