In light, purple sulfur bacteria use H₂S as an electron donor and release pure sulfur as a waste product. They are examples of A) photoautotrophs. B) photoheterotrophs. C) chemolithotrophs. D) chemoheterotrophs. E) deep-sea, volcanic vent bacteria.

Question

Quizplus · Accepted Answer

Purple sulfur bacteria are photoautotrophs because they use light as their energy source and H2S as an electron donor to fix carbon dioxide into organic compounds.

In Light, Purple Sulfur Bacteria Use H2S as an Electron

In Light, Purple Sulfur Bacteria Use H₂S as an Electron