Did you know‚ food poisoning has increased dramatically in the last ten years? This makes it much more important for vigilance by food businesses. Since 1965 the cases of food-borne illness has increased from 20‚000 to just short of 100‚000 now. There has been no single reason identified to why this number has increased‚ but this could be because of: Changes in eating habits‚ a greater reliance on re-heated food. Eating out is much more popular now‚ so more people are aware of food hygiene‚ therefore
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CONTENT A. BRIEF PRESENTATION OF THE CASE B. POINT OF VIEW I. INTEGRATED SCIENCE(Interaction: Environment and organism) II. COURSE PAPER: CASE STUDY Bacteria constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length‚ bacteria have a wide range of shapes‚ ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear onEarth‚ and are present in most habitats on the planet‚ growing in soil‚ water‚ acidic hot springs‚ radioactive
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"TB") is a disease caused by the bacteria Mycobacterium tuberculosis which infects white blood cells. It mainly infects the lungs‚ although it can affect other organs as well. TB is spread through the air from one person to another. The bacteria are put into the air when a person with active TB disease of the lungs or throat coughs or sneezes. People nearby may breathe in these bacteria and become infected. When a person breathes in TB bacteria‚ the bacteria can settle in the lungs and begin
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Bacteria have to developed a variety of mechanisms that allow them to enter the cells of their host‚ whether to replicate or to transmit the pathogen. One method of this is through pili. Pili are thin rods anchored to the outer membrane of bacteria with an adhesin at the tip. This adhesin is what gives the bacteria their binding specificity. Pili can serve a variety of roles such as‚ adhesion or the transfer of material during bacterial conjugation. Fimbria are a type of pili that are solely for
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how they helped with discovering translation‚ these three experiments help lead to the discovery of DNA. Before Frederick Griffith’s experiment‚ no one knew anything about DNA or what it was. Frederick Griffith studied two types of Pneumococcus bacteria‚
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others were even more specific and used only for cocci bacteria .The first procedure have been done was to observe and record the morphology of the unknown sample. However‚ Gram stain should be done to be sure that unknown sample were gram positive and to identify cells morphology. After that biochemical tests were chosen for unknown identification . first of all was done the catalase test to differentiate between the two types of cocci bacteria ( Staphylococcus and Streptococcus ) . Since unknown
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Everyone gets a certain cold in their life time‚ I’ve had plenty of them along with everyone else in the world. Bacteria is found in many different places‚ but some bacteria is worse than others‚ which can get you sick on certain occasions. These colds are usually treated with a antibiotics and will go away in a short period of time. Some bacteria however will develop a resistance to these antibiotics and are known as super bugs. These super bugs kill millions of people every year and will continue
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or fluid appearance is visible. Bacteria and background don’t have a much of difference in color. Although‚ bacteria are defined and visible noted. Most of the time they are single round cells. In direct stain with crystal violet‚ again background is colorless and glossy. Bacteria is blue and some uneven grouping is noted. In this example the dye methylene blue stain is used. In indirect stain with Congo red stain‚ background is again colorless and glossy. Bacteria are orange to red and fine defined
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toothpaste to oral bacteria VS the effect of mouthwash to oral bacteria Problem: Bacteria in ones’ mouth causes many problems for oneself in the future. For example‚ gum diseases‚ bad breath‚ etc..‚ Toothpaste and mouthwash is promised to kill most of the bacteria in one’s mouth‚ but which is more effective at killing the bacteria and preventing future problems? This experiment and research is going to prove which is more effective at killing oral bacteria. Purpose:
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acidophilus in sodium alginate is an effective technique of protection under simulated gastrointestinal environment. ------------------------------------------------- Introduction Lactic acid bacteria (LAB) are the organisms most commonly used as probiotics. Probiotic bacteria‚ lactic acid bacteria (LAB)‚ which are typically associated with the human gastrointestinal tract‚ have been reported to suppress the growth of pathogens (Coconnier et al.‚ 1993; Kaur‚ Chopra‚ & Saini‚ 2002; Lehto &
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