Answer:
E. Chromatium, Thiospirillum, Thidictyon
Step-by-step explanation:
- There are some bacteria which are capable of conducting photosynthesis without producing oxygen in the process and bacteriochlorophyll is the main structural unit of the photosynthetic component of such bacteria.
- Purple a green sulfur bacteria are the ones that contain bacteriochlorophyll.
- bacteriochlorophyll's function is the same as that of chlorophyll in plants.
- Chromatium, Thiospirillum, Thidictyon are the bacteria that contain bacteriochlorophyll.