Answer to Question #26416 in Microbiology for Anushka

Question

found a microorganism. It use H2S as electron donor to reduce CO2 to cellular carbohydrates. Justify the answer.

Answer 1

The found microorganism may be a purple sulfur bacteria as it uses hydrogen sulfide (H2S) as reducing equivalent donor. It obtains energy from light and carbon from the fixation of carbon dioxide, using reducing equivalents from inorganic compounds.