Laboratory Report 47 47 Nitrogen Cycles Ammonification A. Results Record the pre
ID: 197829 • Letter: L
Question
Laboratory Report 47 47 Nitrogen Cycles Ammonification A. Results Record the presence or absence of ammonia in the tubes of media: + slight ammonia (faint yellow) ++ moderate ammonia ideep yellow) +++large amount ammonia (orown precipitate) AMOUNT OF AMMONIA Peptone with Sol TIME 4 days 7 days B. Short-Answer Questions 1. Why do all living organisms require a nitrogen source? te between the nitrogen-containing compounds utilized and produced during the following processes b. nitrification c. denitrification d. nitrogen fixation 3. For ammonification, what materials are the sources of the ammonia? 341Explanation / Answer
Answer 1- Nitrogen is the compound that is made up of ammonia and urea. Amino acid performs as a building block of all proteins. These proteins form the major structural components (like muscles, tissues and organs), enzymes and diverse hormones that is essential for life process.
Answer 2 - As follows
B1: Ammonification: Ammonification is the process where in the organic nitrogen is converted into ammonia. The resultant ammonia is excreted into the environment that becomes available for nitrification. The process is carried out by diverse group of microbes (detritivores).
B2: Nitrification: Nitrification is the process, where in the ammonium is converted into nitrate. Ammonium is produced as a waste product from cellular metabolism or breakdown product of organic material.
B3: Dinitrification: Dinitrification is the process where the biological reduction of nitrate takes place to form nitrogen gas, with the help of facultative hetertrophic bacteria. Generally, it takes place where the oxygen level is depleted and nitrogen is the only primary source of oxygen for microbes.
B4: Nitrogen fixation: Nitrogen fixation is the process by which the nitrogen present in the atmosphere is converted into ammonia by the enzyme nitrogenase to catalyse the conversion. It takes place in specialized group of prokaryotes.
Answer 3 - Organic nitrogen resulting from assimilation process includes proteins, amino acids, and nucleic acids. These organic nitrogen is converted into ammonia during ammonification.
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