What organism grows best at 42° C and in a reduced oxygen atmosphere (5% to 10%)?

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Quizplus · Accepted Answer

Campylobacter jejuni is a thermophilic organism that grows best at 42° C and is microaerophilic, growing best in a reduced oxygen atmosphere of 5% to 10%. Shigella sonnei and Escherichia coli are mesophilic organisms that grow best at body temperature (37° C) and facultative anaerobes, meaning they can grow in either aerobic or anaerobic conditions. Clostridium difficile is a thermophilic organism that grows best at 37° C to 42° C, but it is anaerobic and requires an oxygen-free environment for growth.

What Organism Grows Best at 42° C and in a Reduced