as a gas
Nitrification, an important step in the nitrogen cycle.
Yes, plants require nitrogen in a form that is biologically available, such as ammonia or nitrate, as they cannot directly utilize atmospheric nitrogen. Certain nitrogen-fixing bacteria assist in converting atmospheric nitrogen into a usable form for plants through a process called nitrogen fixation.
Nitrogen in the air can form compounds with other elements, such as oxygen (to form nitrogen oxides), hydrogen (to form ammonia), and carbon (to form cyanide). These compounds play important roles in various chemical reactions and processes in the environment.
Because the nitrogen in the air is in a form not usable to animals and plants. The only way animals get nitrogen to build protein and nucleic acid is by eating it. This is usually through plants, which get there nitrogen from the soil. They get it from the soil cuz bacteria in the soil turn the atmospheric nitrogen into a usable form. In a water ecosystem cyanobacteria a.k.a. blue-green algae transform the nitrogen from the atmosphere into usable forms of nitrate
nitrogen fission
They absorb nitrogen from the air. Then nitrogen-fixing bacteria convert it to a useable form.
Nitrogen fixing bacteria along and on the roots of plants converts gaseous nitrogen into a form that plants can absorb.
Nitrogen-fixing bacteria convert nitrogen gas from the air into a form that plants can use, called ammonia. These bacteria form symbiotic relationships with certain plants, such as legumes, providing them with a source of nitrogen for growth and development.
Nitrogen appears in the air primarily as diatomic nitrogen molecules (N2), which make up about 78% of the Earth's atmosphere. Nitrogen gas makes up a significant portion of the air we breathe and plays a crucial role in various biological and chemical processes.
Nitrogen fixation is the process by which bacteria remove nitrogen from the air and make it available to plants.
mycorrhizae
Cells that take nitrogen in the air and make to a form that plants can take in from the soil.