Microbiology of Soils The diagnostic enzyme for nitrogen-fixing organisms is nitrogenase nitrate reductase none of these nitrate oxidase nitrogenase nitrate reductase none of these nitrate oxidase ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Chromaticum Chlorobium Both (a) and (b) Rhodomicrobium Chromaticum Chlorobium Both (a) and (b) Rhodomicrobium 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? None of these Achromobacter Agrobacterium Alcaligenes None of these Achromobacter Agrobacterium Alcaligenes ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of measuring15N2 by mass spectrometer demonstrating growth in a nitrogen free medium cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen All of these measuring15N2 by mass spectrometer demonstrating growth in a nitrogen free medium cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen All of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils For rapid decomposition by microbes, the substrate should have a C/N ratio of 10-20 30-40 20-30 60-80 10-20 30-40 20-30 60-80 ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following soil microorganism is involved in the reduction of sulfates to H2S? Thiobacillus thiooxidans Desulfotomaculum Rhodospirillum Rhodomicrobium Thiobacillus thiooxidans Desulfotomaculum Rhodospirillum Rhodomicrobium ANSWER DOWNLOAD EXAMIANS APP
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