diseases are caused by agents such as bacteria‚ parasites‚ protozoa‚ fungus and virus. Bacteria exist on every surface including in the air and below sea level. Most bacteria are harmless but others are harmful to our body and can do bad to your health and internal organs‚ kidneys and the heart. Bacteria can invade into the body via the mouth‚ sexual organs‚ nose‚ eyes or any cuts which need to be cleaned and dressed. Bacteria can enter the body if food is full of bacteria or it isn’t cooked properly‚ this
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Abstract: This lab works to develop the understanding of bacterial transformation through the integration of a plasmid into E-coli bacteria. Understanding of plasmids‚ GFP‚ expression of genes and bacterial candidates is used to formulate a lab which demonstrates a variety of factors associated with transformation efficiency. It was deduced that there are certain requirements present in the pGLO plasmid for full gene expression and that an increase in transformation solution positively impacts
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Tobacco Composting: An Alternative to Burning or Landfill Composting is the purposeful biodegradation of organic matter‚ such as yard‚ food and agro-industrial waste. The decomposition is performed by micro-organisms‚ mostly bacteria‚ but also yeasts and fungi. A biodegradable material is capable of being completely broken down under the action of microorganisms into carbon dioxide‚ water and biomass. A compostable material biodegrades substantially under specific composting conditions.
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The level of periodontal break down depends on the balance between destructive and protective inflammatory mediators. While periodontal bacteria are required for infective periodontal disease‚ individual response determines disease progression. In vitro‚ it has been found that individual response is affected by genetic signaling pathways that affect the expression of inflammatory mediators in response to bacterial lipopolysaccharides (23‚ 25). Risk factors for periodontitis In the past‚ it was believed
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the same type of incomplete dominance as mentioned in the previous paragraph‚ assume that the pink flowers are selected against. This means that the two humps shown in the distribution will be centered on the red and white phenotypes. Many pathogenic bacteria species are becoming resistant to antibiotics. Explain how such adaptations can develop through the process of natural selection. (Hint: Relate this example to the conditions that are necessary for natural selection to occur.) Antibiotic resistance
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I learned in the A & P course that ear wax (or cerumen) is a waxy secretion by ceruminous gland (= modified sebaceous gland)‚ mixed with sloughed epithelial cells‚ which inhibits the growth of certain bacteria due to its acidic pH. It also protects the skin of the external auditory canal by providing a waterproof layer‚ so‚ it’s something beneficial to us. Sure enough‚ there appear to be a number of articles written to support this - "Bactericidal activity of cerumen"‚ Chai & Chai (ref 1)‚ "Bactericidal
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1 Understand the roles and responsibilities in prevention and control of infection A My role is to maintain a high standard of health and hygiene‚ which means regularly washing my uniform‚ regularly washing and keeping my hair clean and tied back‚ keeping my nails short and not wearing false nails or polish. Not wearing rings. Regularly washing my hands the correct way. I must report illness and any skin conditions to my manager and not come into work with diarrhoea and/or vomiting until 48 hours
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Unit 265 Outcome 1 1.1 A: Bacteria: Bacteria exist everywhere‚ inside and on our bodies. Most of them are completely harmless and some of them are very useful. But some bacteria can cause diseases‚ either because they end up in the wrong place in the body or simply because they are ’designed’ to invade us. Bacteria can infect humans‚ plants or animals. B: Viruses: A virus is a small infectious agent‚ too small to be seen by the naked eye. They can’t multiply on their own‚ only inside the cells of
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What is Food Microbiology Food microbiology is the study of food micro-organisms; how we can identify and culture them‚ how they live‚ how some infect and cause disease and how we can make use of their activities. Microbes are single-cell organisms so tiny that millions can fit into the eye of a needle. They are the oldest form of life on earth. Microbe fossils date back more than 3.5 billion years to a time when the Earth was covered with oceans that regularly reached the boiling point‚ hundreds
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Causes and spread of infection. 1. Understand the causes of infection. 1.1 You need to understand the differences between bacteria‚ viruses‚ fungi and parasites; this also covers cell structure and growth pathogens. 1.2 Common illnesses and infections include bacteria for example tuberculosis‚ MRSA‚ tetanus‚ gangrene‚ Legionnaires ‘disease‚ salmonella and conjunctivitis. Viruses like winter vomiting disease‚ measles‚ mumps‚ chickenpox‚ HIV‚ Hepatitis B‚ warts and influenza. Fungal infections
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