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 none of these fast growth slow growth medium growth none of these fast growth slow growth medium growth ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Bacteria, as a group, are responsible for nitrogen fixation all of these sulfur oxidation nitrogen oxidation nitrogen fixation all of these sulfur oxidation nitrogen oxidation ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Denitrification is carried out predominantly by Pseudomonas spp usually by facultative anaerobes All of these predominantly by Bacillus spp predominantly by Pseudomonas spp usually by facultative anaerobes All of these predominantly by Bacillus spp ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The groups of bacteria which have the ability to fix nitrogen from air to soil are nonsymbiotic none of these both (a) and (b) symbiotic nonsymbiotic none of these both (a) and (b) symbiotic 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 ammonification denitrification nitrification nitrogen fixation ammonification denitrification nitrification nitrogen fixation ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils A heterocyst is the progenitor of cyanobacterial vegetative cells a terminally differentiated cell that fixes nitrogen a cell that carries out oxygenic photosynthesis a type of spore the progenitor of cyanobacterial vegetative cells a terminally differentiated cell that fixes nitrogen a cell that carries out oxygenic photosynthesis a type of spore ANSWER DOWNLOAD EXAMIANS APP
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