In an anaerobic environment, facultative anaerobes use what kind of pathway to produce ATP? A.Krebs cycle and fermentation b.Glycolysis and fermentation c.Photosynthesis and the Calvin Benson cycle d. Krebs cycle and oxidative phosphorylation Why is free oxygen toxic to obligate anaerobes? A.They produce catalase and superoxide dismutase. B.They use fermentation pathways rather than oxidative phosphorylation to produce ATP. C.They do not produce the right enzymes to degrade oxygen radicals. D.They cannot use oxygen as the final electron acceptor in respiration.
In an anaerobic environment, facultative anaerobes use what kind of pathway to produce ATP?
A.Krebs cycle and fermentation
b.Glycolysis and fermentation
c.Photosynthesis and the Calvin Benson cycle
d. Krebs cycle and oxidative phosphorylation
Why is free oxygen toxic to obligate anaerobes?
A.They produce catalase and superoxide dismutase.
B.They use fermentation pathways rather than oxidative phosphorylation to produce ATP.
C.They do not produce the right enzymes to degrade oxygen radicals.
D.They cannot use oxygen as the final electron acceptor in respiration.
You are subculturing an obligate anaerobe from a tube of thioglycolate media. How far down do you dip the inoculating loop to retrieve the bacteria?
A.All the way to the bottom of the media.
B.Just into the top of the media
C.Anywhere in the media is fine.
D.Into the middle of the media
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