Microbiology of Soils Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Rhodomicrobium Chlorobium Both (a) and (b) Chromaticum Rhodomicrobium Chlorobium Both (a) and (b) Chromaticum ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following species of different genera of bacteria are not capable of transforming nitrate to nitrogen? Alcaligenes Agrobacterium None of these Achromobacter Alcaligenes Agrobacterium None of these Achromobacter ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The diagnostic enzyme for denitrification is nitrate reductase none of these nitro oxidoreductase nitrate oxidase nitrate reductase none of these nitro oxidoreductase nitrate oxidase ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen oxidation (nitrification)refers to the conversion of ammonium ions into nitrates through the activities of certain bacteria. changing of atmospheric nitrogen (N2) to nitrogen compounds sulfur is oxidized to the sulfate form through Thiobacillus bacteria None of these conversion of ammonium ions into nitrates through the activities of certain bacteria. changing of atmospheric nitrogen (N2) to nitrogen compounds sulfur is oxidized to the sulfate form through Thiobacillus bacteria None of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The groups of symbiotic bacteria, which have the ability to fix nitrogen these bacteria are from the genus, Rhizobium All of these derive their food and minerals from the legume, and in turn they supply the legume with some or all of its nitrogen grow together for a mutual benefit is called symbiosis and so these bacteria are called symbiotic nitrogen-fixing bacteria these bacteria are from the genus, Rhizobium All of these derive their food and minerals from the legume, and in turn they supply the legume with some or all of its nitrogen grow together for a mutual benefit is called symbiosis and so these bacteria are called symbiotic nitrogen-fixing bacteria ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils An example of a symbiotic nitrogen fixer is Rhizobium Clostridium Beijerinckia Azotobacter Rhizobium Clostridium Beijerinckia Azotobacter ANSWER DOWNLOAD EXAMIANS APP
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