Most methanotrophs are obligate ________ because ________.
A) aerobes / the initial step of methane oxidation requires O₂
B) anaerobes / methane is produced in anaerobic environments
C) fermenters / methane only provides enough energy for fermentation
D) heterotrophs / methane does not provide enough carbon for growth
Correct Answer:
Verified
Q16: Purple sulfur bacteria are
A) alphaproteobacteria that oxidize
Q17: Which group of bacteria would you expect
Q18: Aerobic anoxygenic phototrophs
A) do not use bacteriochlorophyll.
B)
Q19: You are looking at a sample from
Q20: Nitrogen fixation is
A) rare among microorganisms.
B) widespread
Q22: Nitrogenase is a critical enzyme in the
Q23: Which of the following functional groups form
Q24: Bdellovibrio species are _ cells that replicate
Q25: Green sulfur bacteria are often found at
Q26: Diazotrophs maximize nitrogenase activity by
A) closely coupling
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