helpppppppppppppp pleaseeeeeeeeeee?

Question

create a list of where nitrogen is found in nature and biological system?

Answer 1

Nitrogen is present in all living tissues as proteins, nucleic acids and other molecules. It is a large component of animal waste (for example, guano), usually in the form of urea, uric acid, and compounds of these nitrogenous

http://periodic.lanl.gov/elements/7.html

Answer 2

Nitrogen Compounds and Nitrogen in Nature

Sodium nitrate (NaNO3) and potassium nitrate (KNO3) are formed by the decomposition of organic matter with compounds of these metals present. In certain dry areas of the world these saltpeters are found in quantity and are used as fertilizers. Other inorganic nitrogen compounds are nitric acid (HNO3), ammonia (NH3), the oxides (NO, NO2, N2O4, N2O), cyanides (CN-), etc.

The nitrogen cycle is one of the most important processes in nature for living organisms. Although nitrogen gas is relatively inert, bacteria in the soil are capable of “fixing” the nitrogen into a usable form (as a fertilizer) for plants. In other words, Nature has provided a method to produce nitrogen for plants to grow. Animals eat the plant material where the nitrogen has been incorporated into their system, primarily as protein. The cycle is completed when other bacterial convert the waste nitrogen compounds back to nitrogen gas. Nitrogen has become crucial to life being a component of all proteins.

Answer 3

Nitrogen is the largest single component of the Earth's atmosphere (78.082% by volume, 75.3% by weight).

14Nitrogen is created as part of the fusion processes in stars, and is estimated to be the 8th most abundant chemical element (by mass) in our universe.

Compounds that contain this element have been observed by astronomers, and molecular nitrogen has been detected in interstellar space by David Knauth and coworkers using the Far Ultraviolet Spectroscopic Explorer. Molecular nitrogen is a major constituent of Titan's thick atmosphere, and occurs in trace amounts of other planetary atmospheres.

Nitrogen is present in all living tissues as proteins, nucleic acids and other molecules. It is a large component of animal waste (for example, guano), usually in the form of urea, uric acid, and compounds of these nitrogenous products.

Answer 4

Over geological time, photosynthetic carbon fixation in the oceans has exceeded respiratory oxidation of organic carbon. The imbalance between the two processes has resulted in the simultaneous accumulation of oxygen in, and drawdown of carbon dioxide from, the Earth's atmosphere, and the burial of organic carbon in marine sediments1−3. It is generally assumed that these processes are limited by the availability of phosphorus4,5, which is supplied by continental weathering and fluvial discharge5−7. Over the past two million years, decreases in atmospheric carbon dioxide concentrations during glacial periods correlate with increases in the export of organic carbon from surface waters to the marine sediments8−11, but variations in phosphorus fluxes appear to have been too small to account for these changes12,13. Consequently, it has been assumed that total oceanic primary productivity remained relatively constant during glacial-to-interglacial transitions, although the fraction of this productivity exported to the sediments somehow increased during glacial periods12,14. Here I present an analysis of the evolution of biogeochemical cycles which suggests that fixed nitrogen, not phosphorus, limits primary productivity on geological timescales. Small variations in the ratio of nitrogen fixation to denitrification can significantly change atmospheric carbon dioxide concentrations on glacial-to-interglacial timescales. The ratio of these two processes appears to be determined by the oxidation state of the ocean and the supply of trace elements, especially iron.

Answer 5

nitrogen is found in all four layers or the atmosphere. it makes up 78% or the atmosphere.

To soccer Queen 12 - i am a 6 grader and they teach us about that stuff. u r totally wrong!!

Answer 6

1. 80% of air is N2
2. proteins
3. fertilizer
4. nitrogen cycle
5.all living cells

Answer 7

sugar, granulated
air
water
wood
paper
coal

wait! have you tried typing nitrogen into google?

Answer 8

deciduous tree leaves are high in nitrogen

Answer 9

uhh is this ur homework?
in biological, in helium tanks,
but i forgot where it is found in nature

Answer 10

whats nitrogen ??