Question

Which of the following organism/s doesn't require oxygen for any physiological process?

• A. Staphylococcus
• B. Clostridium tetani
• C. Escherichia coli
• D. All the above

Answer 1

Answer: (D)

All the above

A)Staphylococcus is an obligate anaerobic bacteria and the end product form in fermentation is lactic acid and are responsible for various disease.

B)Clostridium tetani is an obligate anaerobic bacteria and if oxygen is present they can't survive and are responsible for the disease tetanus.

C)Escherichia coli is a facultative anaerobe that is in absence of oxygen they carry out fermentation and mostly found in the human intestine.

So the correct option is 'All the above'.