Microbiology of Soils Nitrifying bacteria can not be isolated directly by the usual techniques employed to isolate hetrotrophic bacteria. The reasons may be due to medium growth slow growth none of these fast growth medium growth slow growth none of these fast growth ANSWER DOWNLOAD EXAMIANS APP
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 demonstrating growth in a nitrogen free medium All of these measuring15N2 by mass spectrometer cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen demonstrating growth in a nitrogen free medium All of these measuring15N2 by mass spectrometer ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The diagnostic enzyme for denitrification is nitrate oxidase none of these nitrate reductase nitro oxidoreductase nitrate oxidase none of these nitrate reductase nitro oxidoreductase ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Denitrification is both (a) and (b) reduction of nitrate to organic nitrogen compounds reduction of nitrate (NO3-) to nitrogen gas changing of atmospheric nitrogen (N2) to nitrogen compounds both (a) and (b) reduction of nitrate to organic nitrogen compounds reduction of nitrate (NO3-) to nitrogen gas changing of atmospheric nitrogen (N2) to nitrogen compounds ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The organisms responsible for the characteristic musty or earth odor of a freshly plowed field is/are Micromonospora Nocardia all of these Streptomyces Micromonospora Nocardia all of these Streptomyces ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The breakdown of cattle manure in biogas is accomplished by which of the following type of bacteria? All of these Transitional methanogenic Hydrolytic All of these Transitional methanogenic Hydrolytic ANSWER DOWNLOAD EXAMIANS APP
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