0
Green plants are unable to absorb gaseous nitrogen directly because they lack the necessary enzymes to convert atmospheric nitrogen (N2) into a form that can be used by the plant, such as ammonium (NH4+) or nitrate (NO3-). Instead, plants rely on nitrogen-fixing bacteria in the soil to convert N2 into a usable form that can be taken up by the roots.
Add your answer:
Earn +20 pts
What form must the nitrogen be in?
In order to be used by most plants, nitrogen must be in the form of nitrate (NO3-) or ammonium (NH4+). Plants cannot directly use atmospheric nitrogen (N2) as a nutrient source.
Can nitrogen be directly used by living things?
No, nitrogen gas cannot be directly used by most living organisms. Instead, nitrogen-fixing bacteria in the soil or in plant roots convert atmospheric nitrogen into a form (ammonia or nitrates) that can be used by plants to make proteins. Other organisms then obtain nitrogen by consuming these plants.
During nitrogen fixation nitrogen gas is converted into a form that what can use?
During nitrogen fixation, nitrogen gas is converted into ammonia or other forms of usable nitrogen by nitrogen-fixing bacteria. This process is important because plants and other organisms cannot use atmospheric nitrogen directly in this form.
What is the role that nitrogen plays as essential to the production of proteins?
Nitrogen is a key component of amino acids, the building blocks of proteins. Plants absorb nitrogen from the soil to synthesize amino acids, which are then used to produce proteins needed for growth and development. Without nitrogen, plants cannot create proteins, which are essential for various cellular functions.
What are forms of nitrogen that are unable by humans?
Nitrogen gas (N2) in our atmosphere is an example of a form of nitrogen that humans cannot directly use. Additionally, nitrate (NO3-) in soils is not directly usable by humans and must first be converted by plants into a more bioavailable form of nitrogen.
Is it true most nitrogen fixation is performed by plants?
No it is not true. Plants cannot fix nitrogen. Bacteria do the job
Can nitrogen gas be used by plants?
No. Plants cannot use elemental nitrogen. The nitrogen must first be fixed, either by lightning or by nitrogen-fixing bacteria. Some plants have such bacteria in their roots.
Is it true although 78 percent of air is nitrogen plants cannot use this form well?
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.
Why is nitrogen gas in the atmosphere useless to plants?
Plants cannot use nitrogen gas directly because they lack the necessary enzymes to convert atmospheric nitrogen gas (N2) into a usable form like ammonia (NH3) or nitrate (NO3-). Instead, plants rely on specialized bacteria in the soil called nitrogen-fixing bacteria to convert atmospheric nitrogen into a form that plants can use for growth.
Why are nitrogen-fixing bacteria contributions to the nitrogen cycle important?
The air is about 80% nitrogen- but cannot be used by plants for food. Nitrogen fixing bacteria transform nitrogen in the air to nitrogen in the soil that plants CAN use- resulting in greatly improved plant growth, and more fertile soil.
Why are nitrogen bacteria contributes to the nitrogen cycle so important?
The air is about 80% nitrogen- but cannot be used by plants for food. Nitrogen fixing bacteria transform nitrogen in the air to nitrogen in the soil that plants CAN use- resulting in greatly improved plant growth, and more fertile soil.
What form must the nitrogen be in?
In order to be used by most plants, nitrogen must be in the form of nitrate (NO3-) or ammonium (NH4+). Plants cannot directly use atmospheric nitrogen (N2) as a nutrient source.
Why are nitrogen-fixing bacteria contribution to the nitrogen cycle so important?
The air is about 80% nitrogen- but cannot be used by plants for food. Nitrogen fixing bacteria transform nitrogen in the air to nitrogen in the soil that plants CAN use- resulting in greatly improved plant growth, and more fertile soil.
Can plants proces nitrogen?
No they cannot process N. Some bacteria can process N
Why do plants consume nitrogen?
Nitrogen is considered to be a limiting factor for plants since it cannot be absorbed as a gas. Plants will use ammonia as their main source fro nitrogen.
How do consumers obtain nitrogen?
Consumers obtain nitrogen through the food they eat, as nitrogen is an essential component of proteins. Inorganic nitrogen can also be found in the air we breathe, but our bodies cannot use this form directly.
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.
