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 nitrification denitrification nitrogen fixation ammonification nitrification denitrification nitrogen fixation ammonification ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils A heterocyst is a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen a type of spore the progenitor of cyanobacterial vegetative cells a cell that carries out oxygenic photosynthesis a terminally differentiated cell that fixes nitrogen a type of spore the progenitor of cyanobacterial vegetative cells ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following fungi on infecting crop roots can improve their uptake of phosphorus and other nutrients? Aspergillus niger VA Mycorrhiza Saccharomyces cerevisiae Candida torulopsis Aspergillus niger VA Mycorrhiza Saccharomyces cerevisiae Candida torulopsis ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following is not the biofertilisers producing bacteria? Clostridium Nostoc Both (a) and (b) Anabaena Clostridium Nostoc Both (a) and (b) Anabaena ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation especially changes nitrogen compounds, mostly amines such as NH2 fix the free nitrogen (N2) by which it should not be usable by plants both (a) and (b) changes the free nitrogen (N2) to a form usable by plants especially changes nitrogen compounds, mostly amines such as NH2 fix the free nitrogen (N2) by which it should not be usable by plants both (a) and (b) changes the free nitrogen (N2) to a form usable by plants ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Both (a) and (b) Chromaticum Rhodomicrobium Chlorobium Both (a) and (b) Chromaticum Rhodomicrobium Chlorobium ANSWER DOWNLOAD EXAMIANS APP
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