試題詳解

3. Which statement related to Gram-negative photosynthetic bacteria is correct?
(A) Cyanobacteria use hydrogen (H₂) or water as photosynthetic electron donors.
(B) Green sulfur and purple nonsulfur bacteria undergo oxygenic photosynthesis.
(C) Aerobic photolithoautotrophs are the general metabolic type of cyanobacteria.
(D) Chlorophyll a and phycobiliproteins are the major photosynthetic pigments for purple sulfur bacteria.
(E) Sulfur deposition is outside of purple sulfur bacteria and inside of green sulfur bacteria.