Regarding CO₂ Fixation Mechanisms in the Autotrophic Green Sulfur Bacteria

question 16

Multiple Choice

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.

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