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 fast growth slow growth none of these medium growth fast growth slow growth none of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of 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 measuring15N2 by mass spectrometer 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 transformation of nitrates to gaseous nitrogen is accomplished by microorganisms in a series of biochemical reactions. The process is known as denitrification nitrification ammonification nitrogen fixation denitrification nitrification ammonification nitrogen fixation ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils An example of a symbiotic nitrogen fixer is Beijerinckia Clostridium Rhizobium Azotobacter Beijerinckia Clostridium Rhizobium Azotobacter 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 Achromobacter None of these Agrobacterium Alcaligenes Achromobacter None of these Agrobacterium ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The physical structure of soil is improved by the accumulation of minerals mold mycelium all of these water minerals mold mycelium all of these water ANSWER DOWNLOAD EXAMIANS APP
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