When nitrogen is inhaled at high pressure (over 4 atmospheres) in organism is the cause of nitrogen narcosis.
Free nitrogen refers to the nitrogen gas (N2) present in the atmosphere, which is not readily available for use by most organisms. Fixed nitrogen, however, is nitrogen that has been converted into a form that can be utilized by plants and other organisms, such as ammonia, nitrate, or nitrite. This conversion process is often carried out by nitrogen-fixing bacteria in the soil.
Fixed nitrogen refers to nitrogen that has been converted into a form that can be readily used by plants, such as ammonia or nitrates. Free nitrogen, on the other hand, refers to nitrogen gas (N2) that makes up about 78% of the Earth's atmosphere and is not readily available for use by most organisms until it is fixed.
By lightening and by nitrogen fixing bacteria in the roots of certain plants (eg the legumes).
The process of combining free nitrogen with other elements is called nitrogen fixation. This can occur through biological processes such as symbiotic relationships with certain plants and bacteria, or through non-biological processes such as lightning and industrial methods like the Haber-Bosch process. In these processes, atmospheric nitrogen is converted into forms that can be utilized by living organisms, such as ammonia or nitrate.
OK well free nitrogen is fixed by bacteria that live in the soil. some bacteria live in nodules, or bumps , on certain plant roots. the bacteria get food from the plants, and plants absorb fixed nitrogen from the bacteria. animals get nitrogen by eating plants or by eating prey that have eaten plants. fixed nitrogen may enter the soil in other ways too. a small amount of free nitrogen in the air by lighting. it is carried to the ground by rainfall. fixed nitrogen also enters the soil because of decomposers. decomposers break down dead organisms, and fixed nitrogen is released in the soil. the fixed nitrogen can be absorbed by plant roots.
Free nitrogen refers to the nitrogen gas (N2) present in the atmosphere, which is not readily available for use by most organisms. Fixed nitrogen, however, is nitrogen that has been converted into a form that can be utilized by plants and other organisms, such as ammonia, nitrate, or nitrite. This conversion process is often carried out by nitrogen-fixing bacteria in the soil.
No, most organisms cannot use free nitrogen gas from the air. Instead, certain bacteria have the ability to convert atmospheric nitrogen into a form that plants can absorb and utilize. This process is known as nitrogen fixation.
nitrogen
No, most organisms cannot use the free nitrogen in the air. Instead, certain bacteria and archaea have the ability to convert atmospheric nitrogen into a form that plants can use through a process called nitrogen fixation. This fixed nitrogen then moves through the food chain as organisms consume plants and other organisms.
Since the air around you is about 78% nitrogen gas, you might think it would be easy for organisms to retrieve nitrogen easily. However, most organisms cannot use nitrogen gas. Nitrogen gas is called "free" nitrogen because it's not combined with other atoms. Most organisms can use nitrogen only when it has been combined with other elements to form nitrogen-containing compounds. So, is that the answer you were looking for (possibly for homework)?
Most of the free nitrogen on Earth is found in the atmosphere, where it makes up about 78% of the air we breathe. Nitrogen gas (N2) is abundant in the atmosphere, but it is not readily available for use by most living organisms in this form.
Atmospheric nitrogen fixation is the process where nitrogen is converted into ammonia. Without nitrogen, organisms couldn't grow, and organisms need nitrogen more than anything to grow.
Free oxygen can be a problem for many organisms because it is highly reactive and can lead to the production of harmful reactive oxygen species (ROS) like superoxide radicals and hydrogen peroxide. These ROS can damage cell membranes, proteins, and DNA, leading to oxidative stress and potential cell death. Organisms have evolved various mechanisms to manage and neutralize these reactive oxygen species.
Fixed nitrogen refers to nitrogen that has been converted into a form that can be readily used by plants, such as ammonia or nitrates. Free nitrogen, on the other hand, refers to nitrogen gas (N2) that makes up about 78% of the Earth's atmosphere and is not readily available for use by most organisms until it is fixed.
Free nitrogen becomes available for organisms to use through a process called nitrogen fixation. This process involves certain bacteria or lightning converting atmospheric nitrogen (N2) into forms that can be taken up by plants, such as ammonium (NH4+) or nitrate (NO3-). Plants then absorb these forms of nitrogen through their roots, incorporating them into proteins and other essential molecules that are then consumed by other organisms as part of the food chain.
Nitrogen-fixing bacteria
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