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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)?
Wiki User
∙ 11y ago
Wiki User
∙ 11y agoNo, most organisms (other than nitrogen fixers like alfalfa plants) cannot utilize the nitrogen in air.
Wiki User
∙ 11y agoFree living bacteria in the soil and through bacteria in the roots of legums and similar plants.
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∙ 12y agohumans
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∙ 10y agothe penis
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What gas cannot be used directly your most organisms?
Nitrogen
In what form most organisms obtain nitrogen?
from amino acids
What elements are most organisms unable to take from the atmosphere?
nitrogen
What is the large reservoir of nitrogen that is unusable by most organisms?
The air is 80% nitrogen but most organisms are able to extract it from the air.
Is nitrogen rare?
Nitrogen is definitely not rare: In elemental form, nitrogen makes up most of the natural atmosphere, and, in combined form, it is a major constituent of all organisms, because it is a necessary constituent of all proteins; nitrogen also occurs extensively in nitrate minerals.
Can we use pure nitrogen gas as a nutrient?
No, not directly. There are bacteria that can fix Nitrogen out of the air and make it available as a nutrient but Nitrogen has to be in a compound form for it to be useful to most of the living things on Earth.
What are the most organisms unable to take from the atmosphere?
Nitrogen.
Why is nitrogen a limiting nutrient?
This is because the particular form of nitrogen found in air “nitrogen gas“ cannot be assimilated by most organisms. For example, “Nitrogen nutrients are water-soluble and as a result they are easily drained away”, so that they are no longer available for plants.
Which macromolecule provides the most nitrogen for organisms?
Starch Is A Carbohydrate And Starch Provides Nitrogen For Most Plants. So Carbs Is The Answer But Only For Plants.. I Dont Know About All Organisms.
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.
Can most organisms can use free nitrogen air?
YES!
What gases such as oxygen nitrogen and carbon dioxide are needed by most species?
Oxygen is needed by all organisms for respiration , carbon dioxide is needed by plants for photosynthesis , nitrogen is needed i form of nitrates by plants .
