Nitrogen fixing bacteria in the roots of leguminous plants reduce atmospheric nitrogen to ammonium using ATP and reduced NAD. The ammonium ions released into the soil are oxidised by nitrifying bacteria firstly to nitrite, and then to nitrate. This oxidation increases the nitrogen content in the soil which plants can use to produces many useful molecules including amino acids, proteins, DNA and ATP. The formation of these ions forms part of the ecological nitrogen cycle which plays a key role in sustaining life on this planet. Plants are the producers for an ecosystem.
For instance Carbon Dioxide from the atmosphere is synthesized by plants, which is ingested and metabolized by animals, which is converted to Carbon Dioxide during respiration and decay. Humans remove over 40% of the photosynthetic that effort plants in order to support human enterprises. When humans burn fossils fuels that increases the atmosphere Carbon Dioxide by 35%, then during the combustion stage the present of air (oxygen), Carbon Dioxide and water molecules are release into the atmosphere. Human has an impact on the Phosphorus Cycle as well as the Carbon Cycle. The Phosphorus Cycle is representative of the cycle of all biologically important mineral nutrients-those elements that have their origin in the rock and soil minerals of the Lithosphere, such as iron, calcium, and potassium.
And the last step is tertiary treatment, where all organic ions, particularly ammonium, nitrate, and phosphate are removed (Abdel-Raouf et al., 2012; de-Bashan & Bashan, 2004). This treatment can be accomplished by the use of bacterial sludge, wetlands, hydroponics and algal cultivation. Biological treatment is interesting due to nutrient assimilation into green biomass (de-Bashan & Bashan, 2010; Larsdotter, 2006). Microalgae in wastewater treatment were firstly used by William Oswald (Oswald et al., 1852). The role of algae was to assimilate plant nutrients and to support bacteria with oxygen.
The carbon cycle is a process that transfers carbon among producers, organisms, and consumers to indicate two particular places it comes from and its oceans and the combustion of fossil fuels, which releases CO2 to the atmosphere. Humans are putting a huge impact on the carbon cycle. Humans are expanding business and housing developments and in the process are chopping down timbers and removing plants which releases significant amounts of CO2 to the atmosphere. The Phosphorus cycle represents the cycles of all the biologically important mineral nutrients. Phosphate comes from a rock that gradually breaks down and will release other ions.
1. Nitrogen fixation is a natural process by which inert or unreactive forms of nitrogen are transformed into usable nitrogen. Why is this process important to life? Nitrogen fixation, natural and synthetic, is crucial for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms of life. Farmers rely on nitrogen fixation for agriculture and the manufacture of fertilizer.
Some of runoff enters rivers flowing water towards ocean where water cycle had started. Another cycle which is part of the ecosystem is the nitrogen cycle. All living organisms require a source of nitrogen from which to manufacture proteins, nucleic acids and other nitrogen containing compounds. Plants take up most of nitrogen they need in form of nitrate (NO3- ) ions from the soil. Ammonification is the production of ammonia from organic compounds such as urea.
Photosynthesis is the process when plants and some bacteria use the sun lights energy to produce glucose from carbon dioxide and water. carbon dioxide + water- sunlight- glucose + oxygen Energy in the form of light is the definition of electromagnetic energy. Any visible light like light bulbs, electromagnetic energy can take the form of it. The energy is being absorbed to break bonds making the process endothermic. When energy is being released making new bonds formed is called the exothermic process.
Scherrie Smith Environment Science EVS 1001-120 October 26, 2012 Professor Amanda Slaughter How Humans Impact in Carbon, Nitrogen, and Phosphorus Cycle. Carbon Cycle- is the circulation of carbon between living organisms and their surroundings. Carbon dioxide from the atmosphere is synthesized by plants into plant tissue, which is ingested and metabolized by animals and converted to carbon dioxide again during respiration and decay. The human impact on the Carbon Cycle is that human intrusion into the cycle is significant. We are diverting or removing 40% of the photosynthetic effect of and plants.
According to Merriam-Webster.com “Carbon cycle: The cycle of carbon in the earth’s ecosystems in which carbon dioxide is fixed by photo synthetic organisms to form organic nutrients and is ultimately restored to the inorganic state (as by respiration, protoplasmic decay, or combustion).” The carbon cycle starts with the reservoir of carbon dioxide in the air. It also becomes organic molecules in organisms. The carbon also is respired by plants and animals into the air or is deposited in soil. Some of the processes are significant in transferring carbon. The fossilization of the dead plants and animals into coal.
The Ecological Impact of Prokaryotes A. Prokaryotes are indispensable links in the recycling of chemical elements in ecosystems 1. Prokaryotes play essential roles in Earth’s biogeochemical cycles, e.g., decomposers break down and recycle organic compounds in dead organisms. Autotrophs make organic compounds that form the foundation for many food webs. They can metabolize inorganic molecules, make oxygen for the atmosphere, and fix nitrogen that becomes a nitrogen source for amino acids and nucleic acids. B.