and spread of Infection 1. Understand the causes of Infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites More accurately‚ parasites are actual animals‚ along with mites‚ and mites are so small you have some thousands living in your eyebrows. Bacteria are one cell things with a cell wall. Virae (viruses) are code only--they are the core requirement that bacteria have‚ but without all the other protective layers like cell wall and energy production. Instead‚ they
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all bacteria are harmful and that maybe the Earth would be better off if all bacteria were eliminated. What would life be like in a bacteria-free world? Bacteria help decay materials and put vitamins and minerals‚ and gases into the atmosphere. Without them the world would be able to produce little food. Bacteria are woven into the food chain. Without them‚ nutrients would not be recycled in soils as efficiently as they are. Our own digestion of food would not work so well without bacteria that
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Nowadays resistance to antibiotics is one of the major challenges facing treatment of bacterial infections. The majority of human pathogenic bacteria have been resistant to clinically used antibiotics. Moreover‚ the currently used antibiotics have low selectivity against bacteria and thereby affect both pathogenic bacteria and our benign endogenous microflora. Therefore‚ there is a need to find out a novel approach that inhibits the bacterial pathogenesis and infection [1-3]. Chlamydia trachomatis
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strain of bacteria and to observe its characteristics. This same approach can be used when testing for resistance evolution within bacterial strains. Our hypothesis states that bacteriophage will not be present within our sample from East Lake. With the use of a phage buffer and soft agar‚ it provides an even suspension and growth of cells. This is essential for seeing lysis caused by bacteriophage. After 24 hours‚ our data seemed significant as signs of successful infection within the bacteria was not
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The role of bacteria in the soil Bacteria in the soil play key role in recycling matter in to useful nutrients which can be used by growing plants. This process of recycling matter in the soil by living organisms is called biogeochemical cycle. Bacteria are improving plants growth in other ways too‚ for example bacteria‚ such as Rhizobium‚ are in symbiotic relationship with the root system of some terrestrial plants. The most important elements‚ which allow terrestrial plants grow well‚ are
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hostorganism by parasitespecies. Infecting parasites seek to use the host’s resources to reproduce‚ often resulting in disease. Colloquially‚ infections are usually considered to be caused by microscopic organisms or microparasites like viruses‚ prions‚ bacteria‚ and viroids‚ though larger organisms like macroparasites and fungi can also infect. Hosts normally fight infections themselves via their immune system. Mammalian hosts react to infections with an innate response‚ often involving inflammation‚ followed
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2 Credit Value: 2 GLH 20 Learning Outcomes The learner will; Assessment Criteria The learner can; 1. Understand the causes of infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites 1.2 Identify common illnesses and infections caused by bacteria‚ viruses‚ fungi and parasites 1.3 Describe what is meant by “infection” and “colonisation” 1.4 Explain what is meant by “systemic infection” and “localised infection 1
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immune system to fight of the infection. Infection is an invasion by a multiplication of pathogenic microorganisms in a bodily part or tissue which may produce subsequent tissue injury and progress to overt disease through a variety of cellar or toxic mechanism here are some of the zones in the body showing how pathogens cause infections and disease Pathogenic microorganisms can be spread from person to person in a number of ways. Not all pathogens
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several causes of oral diseases ranging from chemical burns as a result of aspirin or tobacco use to hormonal disturbances from simply going through puberty or becoming pregnant. One cause of great concern is microorganisms. From bacteria to viruses‚ there are many pathogenic microorganisms that may be found in the oral cavity. As a dental assistant‚ we should be capable of identifying an abnormal condition in the mouth and making sure to inform the dentist about it. A virus that is common and may
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violet‚ basic fuchsin‚ or methylene blue. Simple dyes used to stain bacteria have a positive charge cationic (+)‚ therefore‚ they are attracted to the bacteria that are usually negatively charged anionic (-) Depends on the fact that bacteria differ chemically from their surroundings and thus can be stained with their environments Simple stains are used to provide contrast between specimen and background Differential Staining Bacteria react differently to the multiple reagents that are used i.e. Gram
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