Organisms use this form of nitrogen to produce amino acids. The major decomposers are bacteria and fungi. If bacteria and fungi did not break down dead organisms, energy and valuable nutrients would remain trapped within the dead organisms. The nitrogen cycle would not be possible without decomposers, because the decomposers role is to break down the nitrogen containing chemicals into simpler chemicals. The nitrogen cycle is a series of processes that converts nitrogen gas to organic substances and back to nitrogen in nature. It is a continuous cycle that is maintained by the decomposers and nitrogen bacteria. Some bacteria can survive without oxygen, such as those used in biogas generators. These nutrients continue the cycle as producers use them to grow. This video explains abour Decomposers and Decay This ammonia is converted to nitrates by nitrifying bacteria. During the first step, nitrogen-fixing bacteria take in nitrogen from the atmosphere and use it to produce ammonia. A balance of nitrogen compounds in the environment supports plant life and is not a threat to animals. Water - Lack of water will slow or prevent decay Water is needed for transport and to support reactions inside organisms. They serve in decay cycle. When the chemical process is not completed, nitrous oxide (N 2 O) can be formed. A decomposer is an organism that breaks down dead plant or animal matter. It is only when the cycle is not balanced that problems occur. There is always a cycle of CO 2 running in the atmosphere due to which the concentration of CO2 remains constant in the atmosphere. Decomposers may even become food themselves when they are attached to a … FUNGI - LIFE SUPPORT FOR ECOSYSTEMS Andrew Cowan N.D.Arb. Decay organisms need water to digest their food. What will happen is that something like those things will evolve pretty quickly. Other bacterial organisms use the ammonia to produce compounds called nitrates and nitrites. This is because ecosystems depend on recycling in order to function. Published: essentialARB, Issue 4 - 2001 Fungi are fundamental to the success and health of almost every ecosystem on earth, both terrestrial and aquatic, and essential to the sustainability of biodiversity. What would happen to ecosystems without decomposers? Decay cycle refers to breakdown of complex organic matters present in dead and decaying plant and animal bodies into the simpler substances. Choose the correct sequence of this cycle: (a) CO 2 in atmosphere→ decomposers → organic carbon in animals → inorganic carbon in soil (b) CO 2 in atmosphere → organic carbon in plants →organic carbon in animals → inorganic carbon in soil Decomposers break down dead organic materials and release nutrients into the soil or water. Decomposers are the microbial heterotrophs and include fungi as well as bacteria. Without decomposers, the bodies of dead animals and plants will begin to pile up. 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