Microbiology of Soils The transformation of nitrates to gaseous nitrogen is accomplished by microorganisms in a series of biochemical reactions. The process is known as nitrification ammonification denitrification nitrogen fixation nitrification ammonification denitrification nitrogen fixation ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of measuring15N2 by mass spectrometer All of these demonstrating growth in a nitrogen free medium cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen measuring15N2 by mass spectrometer All of these demonstrating growth in a nitrogen free medium cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The diagnostic enzyme for denitrification is nitrate oxidase none of these nitro oxidoreductase nitrate reductase nitrate oxidase none of these nitro oxidoreductase nitrate reductase ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The groups of bacteria which have the ability to fix nitrogen from air to soil are both (a) and (b) none of these symbiotic nonsymbiotic both (a) and (b) none of these symbiotic nonsymbiotic ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils For rapid decomposition by microbes, the substrate should have a C/N ratio of 30-40 60-80 20-30 10-20 30-40 60-80 20-30 10-20 ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The nonsymbiotic bacteria which fix nitrogen live in the soil independently are considerably less important in comparison to the symbiotic bacteria Clostridium Azotobacter All of these considerably less important in comparison to the symbiotic bacteria Clostridium Azotobacter All of these ANSWER DOWNLOAD EXAMIANS APP
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