Question

you found a microorganism & after some experiment you found that in the presence of light it use H2S as electron donor to reduce CO2 to cellular carbohydrates. What is its category you can classify it. Justify your answer.

Answer 1

It may be microorganism from the phylumCyanobacter. Such "blue-green algae" are photosynthetic (pigmentsavailable). They reduce CO₂ to make carbohydrates. Electron donorsare usually O₂ or H₂S.