Out of the 5 possible oxygen requirements (Obligate aerobes, microaerophiles- is E. coli, Pseudomonas aeruginosa, and Clostridium sporogenes? sketch below (or describe well with words), what growth would look like for each species in FTM tubes.

Pseudomonas aeruginosa is capable of aerobic respiration and anaerobic respiration but not fermentation. It can produce H2Sdoes not produce tryptophanase, and is motile by a flagellum . Based on the above characteristics, describe your expected results for Pseudomonas aeruginosa in a SIM deep .

Escherichia coli O157:H7 is a foodborne pathogen and can cause serious illness in humans by producing toxins that can severely damage the lining of intestines and kidneys. What are the oxygen requirements of coli? What result would you observe in the MTM agar deep test? Explain. Research on the growth requirements of this bacterium is required. What is the role of oxygen and cytochrome c oxidase in aerobic respiration? Why does the nitrate reduction tube turn red after the addition of zinc? Clostridium tetani is a common soil bacterium and causes tetanus. Would you expect tetani to possess the enzyme catalase? Explain. Research on the growth requirements of this bacterium is required.

Why do chemotrophs have to use oxygen?  The definition of chemotrophs is = organisms that gain chemical energy by oxidizing bonds. Do the organisms have to oxidize bonds using oxygen?