Which of the following compounds acts as a source of electrons for purple sulphur bacteria?
A. Sodium thiosulphate (Na2S2O3)
B. Hydrogen sulphide (H2S)
C. Potassium thiosulphate (K2S2O3)
D. Water (H2O)
Answer: Option A
This Question Belongs to Biology GK Chapter Wise >> Plant Anatomy And Physiology
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