When nitrogen is fixed, it is changed into ammonia, which can then be used by plants to make proteins and other essential compounds. This process is mainly carried out by nitrogen-fixing bacteria in the soil or by industrial processes.
Nitrogen is changed into ammonia by nitrogen-fixing bacteria in soil and water. This ammonia can then be further converted into nitrites and nitrates by other species of bacteria in a process called nitrification. These nitrates are then used by plants to make proteins and other essential molecules.
Nitrogen gas in the atmosphere needs to be converted into a usable form like ammonia or nitrate through processes like nitrogen fixation by bacteria or lightning. These converted forms of nitrogen can then be taken up by plants and incorporated into proteins for consumption by other organisms.
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lightning & bacterial action (nitrogen fixers).
The process that has changed the percentage of nitrogen in the Earth's atmosphere is biological nitrogen fixation, where certain bacteria convert nitrogen gas into a form that plants can use. This has led to an increase in nitrogen levels over time.
They changed the amino acid sequence of the proteins.
Nitrogen gas is converted into a form that plant cells can use through a process called nitrogen fixation. This can be done by certain bacteria that live in the soil or in the root nodules of leguminous plants. These bacteria convert nitrogen gas into ammonia, which can then be taken up by plant roots and used to synthesize proteins and other essential molecules.
Nitrogen has been present forever. It is the most abundant gas. Industrial revolution has changed it's concentration.
Nitrogen fixation.
Nitrogen is a nutrient that is changed by bacteria into different forms through a process called nitrogen fixation. Bacteria can convert atmospheric nitrogen (N2) into forms that plants can use, such as ammonium (NH4+) or nitrate (NO3-). This process is important for bringing nitrogen into the ecosystem and making it available for plant growth.
Nitrates can be changed back into nitrogen through a process called denitrification. This process is carried out by denitrifying bacteria in the soil, which convert nitrates into nitrogen gas under anaerobic conditions. This nitrogen gas is then released back into the atmosphere.