Practice question
Question
Which of the following organism is an obligate aerobe?
Explanation
Pseudomonas aeruginosa is strictly aerobic non-fermentative rod utilizing oxygen as terminal electron acceptor with cytochrome oxidases, unable to grow anaerobically without nitrate. Escherichia coli and Staphylococcus are facultative anaerobes, while Acinetobacter is also strictly aerobic but less classic obligate textbook example.
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