Friday, May 10, 2019
Microbiology class, answer for each question in 1 page Essay
Microbiology class, answer for separately question in 1 pageboy - Essay ExampleSince microbial pesticides argon of biological origin, they do not harm the environment. Moreover, unlike chemical pesticides, microbial pesticides do not persist in the environment. b. recycling of elements Microorganisms are responsible for recycling of bouncy elements. They convert elements from one form to another, making them available for plants and other organisms. They are important constituents of the food chemical chain as they enter dead animals and plants. They recycle vital elements such as carbon, atomic number 7 and sulfur across the environment, between soil and the atmosphere. For example, nitrogen-fixing bacteria, nitrifying bacteria and denitrifying bacteria play an important role in the recycling of nitrogen via the nitrogen cycle. c. normal microbiota The term normal microbiota refers to those microorganisms that inhabit the body of a host without causing whatever harm. In fa ct, normal microbiota are found to be beneficial to their hosts. For example, some normal microbiota produce B vitamins apart from vitamin K. They likewise protect their host from other harmful microorganisms by preventing their growth. d. sewage treatment Since microorganisms degrade organic matter, they are apply for sewage treatment. Microorganisms grow on the organic matter present in sewage and degrade it into simpler by-products such as methane, carbon dioxide, nitrates, ammonia and other inorganic compounds. Thus by cleaning sewage, microbes help in the recycling of water. e. benevolent insulin production Microorganisms such as Escherichia coli are used in recombinant DNA technology to produce human insulin and other products of human origin. Recombinant DNA is produced by inserting human insulin genes in the E. coli genome. This DNA is then transferred into the bacteria for the production of large amounts of human insulin from E. coli. f. vaccine production Vaccines are p roduced from microorganisms. Disease causing pathogens are rendered inactive and avirulent by chemical or other treatments. These are then injected into animals and humans to induce immunity against them. Apart from attenuated microorganisms, bacterial and viral proteins and polysaccharides are also used to induce immunity. Thus, microorganisms are also used for prophylactic pur bemuses. g. biofilms Biofilms are formed when microorganisms interact with each other, forming layers on other surfaces. By developing biofilms, microorganisms create their own niches almost anywhere. Biofilms make it difficult to eliminate microorganisms as they protect microbial colonies from disinfectants and antibiotics. They are persistent in medical equipment, water pipes, contact lenses etc, and so, pose a threat to human health. 2. Compare and contrast among DNA, ribonucleic acid and ATP. In your answer, include both morphological and functional information. (10 points) Structural similarities betw een DNA, RNA and ATP DNA, RNA and ATP have a nitrogen-bearing base attached to a pentose staff of life. Furthermore, in all these three molecules, the sugar is linked to a phosphate group. Structural differences between DNA, RNA and ATP DNA and RNA are polymers of many nucleotides date each ATP molecule is made of a single nucleotide. The pentose sugar in RNA is a ribose while the pentose sugar in DNA is a deoxyribose, lacking an oxygen atom at the 2 position. The pentose sugar in ATP is also a ribose sugar. Another difference is that while both DNA and RNA contain many nucleotides that have single phosphate groups linked to the phosphate groups of other nucleotides
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