Nitrogen Cycle. Essay

532 words - 2 pages

nitrogen is an important element found when organic matter is analyze. living things cannot utilize nitrogen unless it is in a complex form. Animals require proteins which are very complex. these proteins are manufactured by green plants. when an organism dies, the nitrogen compounds are made simpler by the action of bacteria. green plants take up nitrates ( simple nitrogen compounds) and store the nitrogen away in proteins. undoubtedly many of the compounds built up by the animal and plant would automatically break down after death, yet bacteria hasten the process. in the process of decay, the compounds are almost completely broken down and the result is that the nitrogen has now become so simple ( simpler than nitrates) that green plants cannot utilize it. The group of bacteria which change nitrates into gaseous nitrogen allow the nitrogen fixing bacteria, which rescue this gaseous nitrogen from the air and unite it with other elements suitable for green plants to use.the nitrogen cycle is a very complex in comparison with the oxygen cycle, and it is no wonder that the complete story remained untold for many years. scientist had to learn a great deal about the life of bacteria before they understood how important a part they play in all of the higher organisms, including man. if is possible by governing conditions, to secure the good effect of bacteria, and to prevent many of the bad effects. nitrogen is an essential constituent of animal and vegetable tissue. animals derive the nitrogen of their tissue proteins partially from other animals protein. plants build up their protein from...

Find Another Essay On Nitrogen cycle.

The Significance of the Nitrogen Cycle in Ecosystems

1345 words - 5 pages The Significance of the Nitrogen Cycle in Ecosystems Nitrogen makes up about 80 per cent of the Earth's atmosphere as a gas. However the gaseous molecule is very stable and has to be transformed before it can be used by most organisms as it is only available to them when it is ammonium or nitrate. It can only be removed from the atmosphere in two ways: by lightning and by nitrogen fixation. Only a few species can

Testing the Importance of Nitrogen in plants and the Effects of Organic Matter

2444 words - 10 pages ; nitrogen gas, nitrate, nitrite, ammonia, ammonium, nitrous oxide, and nitric oxide. Not all forms of these chemicals are available to the plant for use. Nitrate is the most common that is used by the plant in the uptake of nitrogen. Plants usually have to wait for the nitrogen to be released by being broken down in the soils by bacteria, fungi, and other organisms in the soils. This is known as the nitrogen cycle. The nitrogen cycle can be a very

Nitrogen Plant Growth

998 words - 4 pages to freshwater rivers and streams; causing an upset in the nitrogen cycle. As a result, many underwater ecosystems are succumbing to "eutrophication" - a process by which microorganisms, especially algae, are produced at rapidly inflating increments, causing a "greening" of the water by a decrease in the levels of dissolved oxygen (DO).Overall, the purpose of this study was to determine the relationship between growth of bean seedlings in the

Influences on Soil Nitrogen Mineralization: Implications for Soil Restoration and Revegetation

1321 words - 5 pages -microbial systems, the re-establishment of the cycle of nitrogen flow in the soil is crucial to revegetation attempts. Mineralizable nitrogen--nitrogen in forms readily usable by plants--is dependent upon a number of factors. According to Stanford and Smith (1972), those factors include soil moisture, pH level, temperature, microbial biomass, and amounts of other nutrients. Three of the more significant and interrelated influences--microbial biomass

Agricultural Chemistry: A look into the mechanics of fertalizers, pesticides and human influence on growing crops

513 words - 2 pages be detrimental. It is thought that adding additional nitrogen to the soil can disrupt the action of nitrogen-fixing bacteria, an important part of the nitrogen cycle. If these nitrogen-fixing bacteria in the soil are killed, then less nitrogen is added naturally. As a consequence, more and more fertilizer must be applied. Inorganic nitrogen fertilizers are relatively cheap and they are often added to arable land in excessive amounts. The crop

Extraction of nitrogen compounds from SRGO and SRGO/LGO mixtures towards ULSD production by acetone/water mixtures

2520 words - 11 pages A B S T R A C T Solvent extraction of the nitrogen compounds present in straight run gas oil (SRGO) and straight run gas oil/light cycle oil mixtures (SRGO/LCO) were studied using acetone and acetone/water mixtures. In the batch experiments, LCO content in SRGO varied from 0 to 15 %, water in acetone went from 0 to 15 % and the solvent/feed ratio changed from 1 to 3. The effect of these variables on the nitrogen removal and gain or loss of

The Hubbard Brook Ecosystem Study

1859 words - 7 pages (Bormann and Likens 1979), important aspects of the nitrogen cycle are shown in a study at Hubbard Brooks: 70% of nitrogen is added by nitrogen fixation and 30% by precipitation. There is 119kg of nitrogen estimated in growth processes, 33%is withdrawn from storage locations and used in growth and the same amount is withdrawn from leaves and stored in more permanent tissues. This is important as it suggests a good portion of spring

Elements Necessary for Growth in Soil

1378 words - 6 pages nitrogen directly it has to be converted into compound they can use through the process of the nitrogen cycle. The first step in the nitrogen cycle is nitrogen fixation where specialize bacteria covert the nitrogen gas (N2) into ammonia (NH3) which the plant can then use. The second process is nitrification; ammonia is converted into nitrite ions which the plants absorb as nutrients. Ammonification is the third process once all the plants and

Ecology affect

1210 words - 5 pages , which will be used by the first trophic level as nutrients. Seeing as how every living being is a complex collection of chemicals, it almost goes without saying that a chemical cycle would be extremely important. “The most important biogeochemical cycles affecting ecosystem health are the water, carbon, nitrogen, and phosphorus cycles” (Anennburg Learner, 2010). Water is the most obvious of the chemicals that are important to an ecological

Crop Rotation and Soil Sustainability

2256 words - 9 pages factor for plant growth, and both amount and availability of nitrogen are greatly affected by the previous crop in a rotation. Legumes play a large role in the nitrogen cycle, and for this reason a legume crop, whether grown as a green manure or as part of the productive yield, is perhaps the most important part of the rotation equation. Symbiotic Rhizobium bacteria living on the root nodules of legumes convert atmospheric nitrogen into a form that

The Biological and Chemical Effects of Organic and Chemical Fertilizers

1693 words - 7 pages found in the atmosphere, and can be converted to usable nitrates through lightening and rainfall. Ammonia and other forms of nitrogen in or added to the soil are turned to nitrates (Roger, 2002). The nitrates are converted back into the atmosphere through dentrification and volitization (“Nitrogen Cycle”, 1993). Phosphorus plays a role in plant growth, and fertilizer can supplement the soil with this nutrient. Phosphorus is used by plants in

Similar Essays

The Nitrogen Cycle Essay

626 words - 3 pages of the atmosphere. The biochemical reactions of the few types of bacteria that contribute to the recycling of nitrogen may be discussed. All other life is dependent on these organisms for the continuation of the essential nitrogen cycle. Human activity which has an impact on the cycling of nitrogen may also be discussed.Although the atmosphere consists of 80% nitrogen gas (N2), plants can utilize nitrogen only in the form of ammonium (NH4+) or

The Process Of Nitrogen Cycle Essay

1409 words - 6 pages The environment is stabilized by the biogeochemical cycles. Biogeochemical cycles are the processes that occur naturally and recycle the nutrients in different chemical forms from the non-living ecosystem to living organisms and then back to the non-living ecosystem. Biogeochemical cycles consist of five cycles which are iron cycle, sulphur cycle, phosphorus cycle, nitrogen cycle and carbon cycle. The most important and complex of biogeochemical

This Describes The Nitrogen Cycle. Essay

702 words - 3 pages The Nitrogen CycleThe nitrogen cycle represents one of the most important nutrient cycles found in terrestrial ecosystems (Figure 1). Nitrogen is used by living organisms to produce a number of complex organic molecules like amino acids, proteins, and nucleic acids. The largest store of nitrogen is found in the atmosphere where it exists as a gas (mainly N2). The atmospheric store is about one million times larger than the total nitrogen

Human Alteration Of The Global Nitrogen Cycle: Ca

782 words - 3 pages There has been much talk about the increasing levels of nitrogen in the atmosphere. It is said that we, as humans, are altering the global nitrogen cycle. I have read the first issue of the Issues in Ecology which is "Human Alteration of the Global Nitrogen Cycle." I will give a brief overview of the Causes and Consequences of the increasing levels of nitrogen in the atmosphere and I will give my opinion on what should be done to slow the pace