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 none of these slow growth fast growth medium growth none of these slow growth fast growth ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of 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 cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Denitrification is reduction of nitrate (NO3-) to nitrogen gas reduction of nitrate to organic nitrogen compounds both (a) and (b) changing of atmospheric nitrogen (N2) to nitrogen compounds reduction of nitrate (NO3-) to nitrogen gas reduction of nitrate to organic nitrogen compounds both (a) and (b) changing of atmospheric nitrogen (N2) to nitrogen compounds 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 Agrobacterium Achromobacter None of these Alcaligenes Agrobacterium Achromobacter None of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The phenomenon of commensalism refers to a relationship between organisms in which one species of a pair benefits both the species of a pair benefit one species of a pair is more benefited None of these one species of a pair benefits both the species of a pair benefit one species of a pair is more benefited None of these 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 It is composed almost exclusively of methane and carbon dioxide It also contains with traces of H2S, N2, H2and CO Both (a) and (b) It also contains with traces of O2 and Cl2 It is composed almost exclusively of methane and carbon dioxide It also contains with traces of H2S, N2, H2and CO Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
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