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 Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Rhodomicrobium Chromaticum Chlorobium Both (a) and (b) Rhodomicrobium Chromaticum Chlorobium Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Most soil protozoa are flagellates or amoebas, having their dominant mode of nitrogen as ingestion of bacteria ingestion of fungi all of these ingestion of mold ingestion of bacteria ingestion of fungi all of these ingestion of mold ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following statement is not true about composition of biogas? It is composed almost exclusively of methane and carbon dioxide Both (a) and (b) It also contains with traces of H2S, N2, H2and CO It also contains with traces of O2 and Cl2 It is composed almost exclusively of methane and carbon dioxide Both (a) and (b) It also contains with traces of H2S, N2, H2and CO It also contains with traces of O2 and Cl2 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? Achromobacter Alcaligenes None of these Agrobacterium Achromobacter Alcaligenes None of these Agrobacterium 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 nitrification denitrification nitrogen fixation ammonification nitrification denitrification nitrogen fixation ANSWER DOWNLOAD EXAMIANS APP
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