Microbiology of Soils Nitrogen oxidation (nitrification)refers to the None of these changing of atmospheric nitrogen (N2) to nitrogen compounds conversion of ammonium ions into nitrates through the activities of certain bacteria. sulfur is oxidized to the sulfate form through Thiobacillus bacteria None of these changing of atmospheric nitrogen (N2) to nitrogen compounds conversion of ammonium ions into nitrates through the activities of certain bacteria. sulfur is oxidized to the sulfate form through Thiobacillus bacteria ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following soil microorganism is involved in the reduction of sulfates to H2S? Rhodomicrobium Rhodospirillum Desulfotomaculum Thiobacillus thiooxidans Rhodomicrobium Rhodospirillum Desulfotomaculum Thiobacillus thiooxidans ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following statement is not true about composition of biogas? It also contains with traces of O2 and Cl2 Both (a) and (b) It also contains with traces of H2S, N2, H2and CO It is composed almost exclusively of methane and carbon dioxide It also contains with traces of O2 and Cl2 Both (a) and (b) It also contains with traces of H2S, N2, H2and CO It is composed almost exclusively of methane and carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Chlorobium Both (a) and (b) Rhodomicrobium Chromaticum Chlorobium Both (a) and (b) Rhodomicrobium Chromaticum ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils A heterocyst is a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen a type of spore the progenitor of cyanobacterial vegetative cells a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen a type of spore the progenitor of cyanobacterial vegetative cells 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 Achromobacter Agrobacterium None of these Alcaligenes Achromobacter Agrobacterium None of these ANSWER DOWNLOAD EXAMIANS APP
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