Nitrogenase is unable to discriminate between O2 and N2, and the O2 will degradatively oxidize the FE-S cofactors of the nitrogenase, rendering it more inefficient under increasingly aerobic conditions.
Nitrogenase enzyme is used by nitrogen fixing bacteria to split molecules of nitrogen gas and combine the nitrogen atoms with hydrogen.Nitrogenase is the enzyme used by some organisms to fix atmospheric nitrogen gas (N2). It is the only known family of enzymes which accomplishes this process
They differentiate a select few cells into specialized semi-anaerobic nitrogen fixing cells called heterocysts.
nitrogen fixing is a process in which atmosphere nitrogen converted into ammonia.
nitrogen fixing is a process in which atmosphere nitrogen converted into ammonia.
Living things that need nitrogen to make complex nitrogen compounds are called nitrogen-fixing organisms. These organisms have the ability to convert atmospheric nitrogen gas (N2) into usable forms such as ammonia or nitrates, which can be incorporated into various biological molecules. Examples of nitrogen-fixing organisms include certain bacteria and some plants, such as legumes.
Nitrogen-fixing bacteria
Nitrogen-fixing bacteria
Reactions for the formation of oxides of nitrogen and nitrates as nitrogen fixing
Nitrogen-fixing bacteria help cycle nitrogen through the ecosystems in a variety of ways. With plants, the nitrogen-fixing bacteria help ensure that nitrogen is cycled back into the soil.
The air.
carnivores -> herbivores -> plants -> nitrogen fixing bacteria
Nitrogen-fixing bacteria do reduce the amount of nitrogen in the atmosphere by converting N2 into ammonia.