Regarding CO2 fixation mechanisms in the autotrophic green sulfur bacteria,
A. Chlorobium uses the reverse citric acid cycle, and Chloroflexus uses the hydroxypropionate pathway.
B. Chlorobium uses the hydroxypropionate pathway, and Chloroflexus uses the reverse citric acid cycle.
C. both Chlorobium and Chloroflexus use the reverse citric acid cycle.
D. both Chlorobium and Chloroflexus use the hydroxypropionate pathway.
Answer:A
Regarding CO2 fixation mechanisms in the autotrophic green sulfur bacteria,
A. Chlorobium uses the reverse citric acid cycle, and Chloroflexus uses the hydroxypropionate pathway. B. Chlorobium uses the hydroxypropionate pathway, and Chloroflexus uses the reverse citric acid cycle. C. both Chlorobium and Chloroflexus use the reverse citric acid cycle. D. both Chlorobium and Chloroflexus use the hydroxypropionate pathway.