Classes of Microbes based on Oxygen Requirements

2 Written Questions

1. oxygen intolerant (have an oxygen sensitive biomolecule)
   energy generated by fermentation
2. do not require oxygen but does not have a oxygen sensitive biomolecule so it can grow in an oxygen rich environment)
   produce energy by fermentation

2 Multiple Choice Questions

1. They require oxygen at 21% concentration (have an oxygen mildly sensitive biomolecule)
   1. obligate anerobes
   2. obligate aerobe
   3. Facultative aerobes
   4. Microaerophiles
2. requires full O2 tension
   energy generated by oxidative phosphorylation (produces 32 ATP / glucose)
   1. obligate anerobes
   2. obligate aerobe
   3. aerotolerant anaerobes
   4. Facultative aerobes

1 True/False Question

1. Facultative aerobes → oxygen intolerant (have an oxygen sensitive biomolecule)
   energy generated by fermentation

   True        False