Microbiology of Soils A heterocyst is a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen the progenitor of cyanobacterial vegetative cells a type of spore a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen the progenitor of cyanobacterial vegetative cells a type of spore ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen oxidation (nitrification)refers to the sulfur is oxidized to the sulfate form through Thiobacillus bacteria conversion of ammonium ions into nitrates through the activities of certain bacteria. None of these changing of atmospheric nitrogen (N2) to nitrogen compounds sulfur is oxidized to the sulfate form through Thiobacillus bacteria conversion of ammonium ions into nitrates through the activities of certain bacteria. None of these changing of atmospheric nitrogen (N2) to nitrogen compounds ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The nonsymbiotic bacteria which fix nitrogen live in the soil independently are considerably less important in comparison to the symbiotic bacteria Clostridium All of these Azotobacter considerably less important in comparison to the symbiotic bacteria Clostridium All of these Azotobacter ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation especially changes nitrogen compounds, mostly amines such as NH2 both (a) and (b) fix the free nitrogen (N2) by which it should not be usable by plants changes the free nitrogen (N2) to a form usable by plants especially changes nitrogen compounds, mostly amines such as NH2 both (a) and (b) fix the free nitrogen (N2) by which it should not be usable by plants changes the free nitrogen (N2) to a form usable by plants 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 none of these medium growth slow growth fast growth none of these medium growth slow growth ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of All of these cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen demonstrating growth in a nitrogen free medium measuring15N2 by mass spectrometer All of these cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen demonstrating growth in a nitrogen free medium measuring15N2 by mass spectrometer ANSWER DOWNLOAD EXAMIANS APP
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