The Only Group of Oxygenic Phototrophic Bacteria are The

Question

The only group of oxygenic phototrophic bacteria are the
A) green nonsulfur bacteria.
B) Chloroflexi.
C) Cyanobacteria.
D) Chlorobi.

Accepted Answer

Cyanobacteria are the only group of oxygenic phototrophic bacteria. Oxygenic means that they use water as a source of electrons to generate oxygen during photosynthesis. This process is similar to that of plants and algae. The other options listed are bacteria that use other sources for photosynthesis or do not produce oxygen as a byproduct.