Multiple Choice
What is the difference between a methylotroph and methanotroph?
A) Methylotrophs are strict anaerobes, while methanotrophs are strict aerobes.
B) Methylotrophs use organic carbon lacking C-C bonds as electron donors and carbon sources, while methanotrophs exclusively use methane as an electron donor and carbon source.
C) Methylotrophs produce organic carbon lacking C-C bonds, while methanotrophs exclusively produce methane.
D) Methylotrophs are in Proteobacteria, while methanotrophs are in Archaea.
Correct Answer:

Verified
Correct Answer:
Verified
Q36: Nitrogen fixation is<br>A) rare among microorganisms.<br>B) widespread
Q37: Bioluminescence is catalyzed by luciferase, which creates
Q38: Aerobic anoxygenic phototrophs<br>A) do not use bacteriochlorophyll.<br>B)
Q39: The ecological diversity of phototrophic bacteria is
Q40: Akinetes and hormogonia are specialized cells, found
Q42: The vacuole of the giant sulfide-oxidizing bacterium
Q43: The ecological diversity of microbes is largely
Q44: Spirilla and spirochetes are closely related bacteria
Q45: Which of the following traits do ammonia
Q46: There are currently no known predatory bacteria