Microbiology of Soils A heterocyst is the progenitor of cyanobacterial vegetative cells a cell that carries out oxygenic photosynthesis a type of spore a terminally differentiated cell that fixes nitrogen the progenitor of cyanobacterial vegetative cells a cell that carries out oxygenic photosynthesis a type of spore a terminally differentiated cell that fixes nitrogen ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils Some microorganisms have the ability to increase the nitrogen content of soils, are called as nitrogen fixation nitrification denitrification all of these nitrogen fixation nitrification denitrification all of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The phenomenon of commensalism refers to a relationship between organisms in which one species of a pair benefits both the species of a pair benefit None of these one species of a pair is more benefited one species of a pair benefits both the species of a pair benefit None of these one species of a pair is more benefited 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? Alcaligenes Agrobacterium Achromobacter None of these Alcaligenes Agrobacterium Achromobacter None of these ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils An example of a symbiotic nitrogen fixer is Clostridium Beijerinckia Azotobacter Rhizobium Clostridium Beijerinckia Azotobacter Rhizobium ANSWER DOWNLOAD EXAMIANS APP
Microbiology of Soils The diagnostic enzyme for nitrogen-fixing organisms is nitrate oxidase nitrate reductase none of these nitrogenase nitrate oxidase nitrate reductase none of these nitrogenase ANSWER DOWNLOAD EXAMIANS APP