Microbiology of Soils Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Both (a) and (b) Rhodomicrobium Chlorobium Chromaticum Both (a) and (b) Rhodomicrobium Chlorobium Chromaticum ANSWER DOWNLOAD EXAMIANS APP
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 fast growth slow growth medium growth none of these fast growth slow growth medium growth none of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Denitrification is carried out predominantly by Pseudomonas spp predominantly by Bacillus spp usually by facultative anaerobes All of these predominantly by Pseudomonas spp predominantly by Bacillus spp usually by facultative anaerobes All of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The groups of bacteria which have the ability to fix nitrogen from air to soil are none of these both (a) and (b) symbiotic nonsymbiotic none of these both (a) and (b) symbiotic nonsymbiotic ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen oxidation (nitrification)refers to the None of these sulfur is oxidized to the sulfate form through Thiobacillus bacteria changing of atmospheric nitrogen (N2) to nitrogen compounds conversion of ammonium ions into nitrates through the activities of certain bacteria. None of these sulfur is oxidized to the sulfate form through Thiobacillus bacteria changing of atmospheric nitrogen (N2) to nitrogen compounds conversion of ammonium ions into nitrates through the activities of certain bacteria. ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils In the process of nitrogen fixation, which of the following microorganism is involved? Non symbiotic microorganisms only Symbiotic microorganisms only Non symbiotic and symbiotic microorganisms only None of these Non symbiotic microorganisms only Symbiotic microorganisms only Non symbiotic and symbiotic microorganisms only None of these ANSWER DOWNLOAD EXAMIANS APP
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