Microbiology of Soils A heterocyst is the progenitor of cyanobacterial vegetative cells a type of spore a terminally differentiated cell that fixes nitrogen a cell that carries out oxygenic photosynthesis the progenitor of cyanobacterial vegetative cells a type of spore a terminally differentiated cell that fixes nitrogen a cell that carries out oxygenic photosynthesis ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The diagnostic enzyme for nitrogen-fixing organisms is none of these nitrogenase nitrate reductase nitrate oxidase none of these nitrogenase nitrate reductase nitrate oxidase ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Nitrogen fixation by the microorganisms can be detected by adopting the approach of demonstrating growth in a nitrogen free medium All of these measuring15N2 by mass spectrometer cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen demonstrating growth in a nitrogen free medium All of these measuring15N2 by mass spectrometer cultivating the microorganisms in the presence of nitrogen labeled with isotropic nitrogen ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following microorganism use H2S as the electron donor to reduce carbon dioxide? Chromaticum Chlorobium Rhodomicrobium Both (a) and (b) Chromaticum Chlorobium Rhodomicrobium Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The energy value of biogas is typically 1,000 BTU/ft3 400-700 BTU/ft3 1500 BTU/ft3 more than 5000 BTU/ft3 1,000 BTU/ft3 400-700 BTU/ft3 1500 BTU/ft3 more than 5000 BTU/ft3 ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Which of the following soil microorganism is involved in the reduction of sulfates to H2S? Rhodomicrobium Thiobacillus thiooxidans Desulfotomaculum Rhodospirillum Rhodomicrobium Thiobacillus thiooxidans Desulfotomaculum Rhodospirillum ANSWER DOWNLOAD EXAMIANS APP
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