Question

Where would obligate anaerobes which are sensitive to O₂ be found growing?

1) In the presence of oxygen
2) In the absence of oxygen
3) In both the presence and absence of oxygen
4) Cannot be determined

Answer 1

Obligate anaerobes which are sensitive to O₂ would be found growing in the absence of oxygen. They rely on fermentation or anaerobic respiration when oxygen is not available.

Step-by-step explanation:

Obligate anaerobes which are sensitive to O₂ would be found growing in the absence of oxygen. Obligate anaerobes cannot grow in the presence of oxygen and rely on fermentation or anaerobic respiration when oxygen is not available. They are typically found in environments lacking oxygen, such as deep sediments of soil, still waters, and the intestinal tract of animals.