Which of the following organisms is using sulfur as a source of energy?
A)Thiobacillus: H₂S → S⁰
B)Desulfovibrio: SO₄²⁻ → H₂S
C)Proteus: Amino acids → H₂S
D)Redwood tree: SO₄²⁻ → Amino acids
E)Photosynthetic bacteria: H₂S → S⁰

Question

Quizplus · Accepted Answer

Thiobacillus is the only organism listed that uses sulfur directly as a source of energy, through the process of oxidation (H₂S → S⁰)

Which of the Following Organisms Is Using Sulfur as a Source