alleryWhen H2S is the hydrogen donor in green sulphur bacteria, the oxidation product is
ASulphur or sulphate
BMolecular oxygen
CHydrogen gas only
DCarbon dioxide gas
Answer & Solution
Correct answer: A. Sulphur or sulphate
Oxidising H2S leaves sulphur or sulphate rather than O2, which showed that plant oxygen comes from the donor water.
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