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Although the air is made up of about 70% nitrogen, plants cannot use nitrogen in this N2 form. Nitrogen fixing bacteria change nitrogen into the form of soluble nitrates so that plants can use it. Other bacteria, known as de-nitrifying bacteria, change nitrates back into N2, which completes the nitrogen cycle
They fix nitrogen into forms usable by plants.
Jose Luettgen
Anonymous
They fix nitrogen into forms usable by plants (apex)
Wiki User
∙ 8y agodenitrifying bacteria convert nitrogen into ammonia which is a form of nitrogen that is useful to humans.
Bacteria "fixes" gaseous nitrogen into nitrogen usable by plants in the form of nitrate. Also bacteria nitrify soil by turning "fixed" nitrogen back into its gaseous form.
Wiki User
∙ 12y agoBacteria breaks down the nitrogen into nitrates that can be consumed by plants. Although the air is made up of about 70% nitrogen, plants cannot use nitrogen in this N2 form. Nitrogen fixing bacteria change nitrogen into the form of soluble nitrates so that plants can use it. Other bacteria, known as de-nitrifying bacteria, change nitrates back into N2, which completes the nitrogen cycle. 1. Bacteria that nitrifies ammonium compounds in the soil (called "nitrifying bacteria"). Example: Nitrosomonas.
2. Bacteria that nitrifies nitrites (NO2-) in the soil (also called "nitrifying bacteria"). Example: Nitrobacter.
3. Bacteria that denitrifies nitrates (NO3-) in the soil (called "denitrifying bacteria"). Example: Pseudomonas denitrificans.
4. Bacteria that "fixes" nitrogen (called "nitrogen-fixing bacteria"). Examples: Rhizobium (which is symbiotic) and Azotobacter (which is free-living).
5. You also have bacteria that putrefies nitrogenous waste (like urea) and the protein in dead organisms. This type of bacteria is called putrefying bacteria.
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In an exam question you could also be asked "What are the types of bacteria in the nitrogen cycle"?
Simply put:
1) Nitrifying bacteria
2) Denitrifying bacteria
3) Nitrogen-fixing bacteria
4) Putrefying bacteria
and if they ask for examples, just use the ones that I gave you.
Read more: What_is_the_role_of_nitrogen-fixing_bacteria_in_the_nitrogen_cycle
Wiki User
∙ 7y agoAlthough the air is made up of about 70% nitrogen, plants cannot use nitrogen in this N2 form. Nitrogen fixing bacteria change nitrogen into the form of soluble nitrates so that plants can use it. Other bacteria, known as de-nitrifying bacteria, change nitrates back into N2, which completes the nitrogen cycle
They fix nitrogen into forms usable by plants.
Wiki User
∙ 12y agoBacteria are responsible for capturing Nitrogen that is in the air and sequestering it into the soil so that plant life can use it. Plants prefer to use nitrogen in its Nitrate form because it dissolves easily in water, making it easy for a plant to gather and store. There are three main steps during the "Nitrification" portion of the Nitrogen cycle.
In the first step, bacteria collect Nitrogen from the atmosphere and use it instead of oxygen to digest their food. These bacteria reduce the Nitrogen to form ammonium ions (+NH4), which are excreted from the cell.
In the next phase, Nitrifying bacteria take the ammonium ions and use it as food, reacting it with oxygen to produce energy. They end up excreting an Nitrite ion (-NO2).
In the final phase, a third group of Nitrifying bacteria oxidize the Nitrite further, excreting the water soluble nitrate that is so necessarily for plant growth.
Emma Groh
The answer for APEX 2022 is... (Dramatic Pause) Nitrogen needs to be fixed before it is used by plants.
Wiki User
∙ 11y agoactually nothing :P
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Why Nitrogen is the most common element in the air .why do bacteria play a role in the nitrogen cycle?
Several bacteria can fix the nitrogen fom atmosphere.
What role does decay play in the nitrogen cycle?
The decomposers , bacteria, and fungi, break down waste and dead organisms returning nitrogen they contain back into the soil.
Which organisms play the largest role in changing atmospheric nitrogen into a form that most living things can use?
Bacteria - which are usually found in the root nodules of legumes and have a symbiotic relationship with the plant.
What is the only biogeochemical cycle which does not pass through the atmosphere?
Phosphorus. "Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the movement of phosphorus, because phosphorus and phosphorus-based compounds are usually solids at the typical ranges of temperature and pressure found on Earth." - However, phosphorus WILL cycle through organisms and water. Water does (evaporation and precipitation both include the atmosphere). Carbon does (carbon dioxide is the third most common substance in the atmosphere). Nitrogen does (nitrogen makes up most of the atmosphere; Nitrogen-fixers depend on this fact).
What important role do fungi play in the environment?
They play an important role in the carbon cycle They play an important role in the carbon cycle
What organisms play a role in the nitrogen cycle?
Producers (incorporate it into organic) and bacteria play a major role in the nitrogen cycle.
Which organisms are most critical in the nitrogen cycle?
Bacteria is the organism most critical in the nitrogen cycle. Bacteria in the nitrogen cycle provides different forms of nitrogen compounds used by higher organisms.
Nitrogen is the most common element in the air. Why do bacteria play a role in the nitrogen cycle?
Several bacteria can fix the nitrogen fom atmosphere.
Why Nitrogen is the most common element in the air .why do bacteria play a role in the nitrogen cycle?
Several bacteria can fix the nitrogen fom atmosphere.
What roles legumes play in the nitrogen cycle?
They absorb nitrogen from the air. Then nitrogen-fixing bacteria convert it to a useable form.
Why do bacteria play a role in the nitrogen cycle?
Some bacteria have the ability to "fix" nitrogen, that is they can utilize gaseous (atmospheric) nitrogen to produce organic compounds. (They can all break down compounds to free nitrogen too.)
What role does decay play in the nitrogen cycle?
The decomposers , bacteria, and fungi, break down waste and dead organisms returning nitrogen they contain back into the soil.
What role do bacteria play the nitrogen cycle?
Although the air is made up of about 70% nitrogen, plants cannot use nitrogen in this N2 form. Nitrogen fixing bacteria change nitrogen into the form of soluble nitrates so that plants can use it. Other bacteria, known as de-nitrifying bacteria, change nitrates back into N2, which completes the nitrogen cycleThey fix nitrogen into forms usable by plants.
What cycle does the atmosphere not play a role in?
In nitrogen cycle
What role does nitrogen play in a nutrient cycle?
The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms. This transformation can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification.
Dose bacteria play a particularly important role in the water cycle?
The nitrogen cycle - /> cycling nutrients, causing diseases, flavoring foods, producing medicines As far as I know, they play an important role in the carbon cycle. When a living thing dies, bacteria attack the body thus releasing all the elements such as carbon back into the atmosphere.
What are the three nutrient cycles that play especially prominent roles?
The three nutrients cycle that plays a big part in our ecosystem are carbon cycles, nitrogen cycles and phosphorus cycles. These three are essential to sustain life and balance in our ecosystem.
