Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen All of these demonstrating growth in a nitrogen free medium measuring15N2 by mass spectrometer cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen All of these demonstrating growth in a nitrogen free medium measuring15N2 by mass spectrometer ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils For rapid decomposition by microbes, the substrate should have a C/N ratio of 10-20 20-30 30-40 60-80 10-20 20-30 30-40 60-80 ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The nitrogenase consists of none of these both (a) and (b) dinitrogenase reductase dinitrogenase none of these both (a) and (b) dinitrogenase reductase dinitrogenase ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following is capable of oxidizing sulfur to sulfates? Rhodospirillum Rhodomicrobium Desulfotomaculum Thiobacillus thiooxidans Rhodospirillum Rhodomicrobium Desulfotomaculum Thiobacillus thiooxidans ANSWER DOWNLOAD EXAMIANS APP
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 __________ play a key role in the transformation of rock to soil. Cyanobacteia De-nitrifying bacteria Nitrifying bacteria Pectin decomposing bacteria Cyanobacteia De-nitrifying bacteria Nitrifying bacteria Pectin decomposing bacteria ANSWER DOWNLOAD EXAMIANS APP
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