A) Fermentative bacteria
B) Chemosynthetic bacteria
C) Photosynthetic purple non-sulphur bacteria
D) Nitrifying bacteria
Correct Answer: C
Solution :
Purple non-sulphur bacteria contain purple pigment bacteriochlorophyll and carry on photosynthesis in presence of simple organic compounds like organic acids and alcohol e.g., Rhodospirillum rubrum. \[2C{{H}_{3}}CHOHC{{H}_{3}}+C{{O}_{2}}\xrightarrow{\text{Sunlight}}\]\[(C{{H}_{2}}O)+2C{{H}_{3}}COC{{H}_{3}}+{{H}_{2}}O\]
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