Photosynthetic bacteria which do not use water as the ultimate source of electrons
A) only contain chlorophyll a.
B) only contain chlorophyll b.
C) do not produce oxygen.
D) have two photosystems.

Question

Quizplus · Accepted Answer

These bacteria, known as anoxygenic photosynthetic bacteria, use alternative electron sources rather than water, such as hydrogen sulfide, organic compounds or iron. As a result, they do not produce oxygen during photosynthesis.

Photosynthetic Bacteria Which Do Not Use Water as the Ultimate