Bacterial Smears Are Fixed before Staining to? Answer It is important to heat fix the bacterial smear before staining so as to‚ kill the bacteria‚ firmly adhere the smear on to the microscopic slide to prevent washing off during staining‚ and to allow the sample to readily take up the stain. Reference: www2.hendrix.edu What is the purpose of heat- fixing the smear? It helps the cells adhere to the slide so that they can be stained. The purpose of heat fixing is to kill the organisms without
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Microbiology: ‘The Correct handling of Micro-organisms’ 1. Devise a title for each of the two experiments you did : (i)‚ Experiment 1 demonstrated the growth of bacteria when placed in liquid nutrient broth culture‚ the number of species present had increased in growth. .(1) (ii) Experiment 2 illustrated the growth of bacteria when placed on different surfaces of solid agar plates which included: nutrient agar‚ CLED agar and MacConkey agar; the number of species present also had increased in growth
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TOMB OF THE UNKNOW SOLDIER November 7‚ 2011 1. The Unknown Soldier fought in World War I. The burial place of the unknown soldier was in France‚ near the battle at Vimy Ridge‚ marked by a tombstone that read “Known unto God”. The remains of an unidentified soldier were returned to Canada to the Tomb of the Unknown Soldier‚ a specially designed sarcophagus directly in front of the National War Memorial in Ottawa‚ the National Capital. 2. The remains of soldiers that fought
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cell. Luckily‚ these chromosome dimers can be resolved back into monomers by a site-specific recombination carried out at the dif site prior to cell divison. XerC/XerD recombination is an example of site-specific recombination found in almost all bacteria. Three critical factors are involved in this recombination reaction: the DNA translocase FtsK‚ tyrosine recombinases XerC/XerD and the specific site dif. The chromosome dimer resolution is done after the activation of XerD by the γ sub-domain of
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There are times in one’s life that they can look back upon and be truly proud of themselves. Laying the wreath at the Tomb of The Unknown Soldier is one of those opportunities. Not only does one get to honor all who have fought and died for this country‚ but they get to do it in a way that is remembered and cherished for the rest of their lives. And honoring these soldiers allows one to do something greater than just in their town‚ something greater than in their school‚ and something so great‚ that
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BACTERIA Period: 4 Characteristics: 3 major shapes Cocci Basilli Spirilla 3 major components Mesosomes flagella Plasmids Growing Up: Bacteria can obtain energy through phototrophs(sunlight)‚ lithotrophs(inorganic compounds)‚ and organotrophs(organic compounds) Marriage/Reproduction Binary Fission: The process by which all bacteria reproduce. It results in the separation of a single cell into two. Transformation: genetic alteration
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classification ● Genus is represented by staphylococcus ● Designing organisms in the industrial setting that can provide human products through genetic engineering or clean up environment waste through bioremediation is part of the sub discipline microbiology referred to as biotechnology ● A pathogen is the term used to refer to any disease causing microorganism ● The term ubiquitous is used to refer to the fact that microbes exists nearly everywhere on the earth ● A good hypothesis must be: able to be supported or rejected by
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MICROBIOLOGY What is the purpose of general growth media‚ selective media‚ and differential media? Give examples of each. General Purpose Media General Purpose media is designed to grow most organisms and do not contain growth inhibitors. Standard Methods Agar and Blood Agar Bases are examples of general purpose media. Differential Media Differential media contain a component that allow an observable change when a specific chemical reaction takes place. Simmons Citrate Agar is an example
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recommends between 25g-30g a day‚ but the average American receives only 12g-13g per day.(3) With this easy alteration‚ we hope to increase these low numbers that the average American receives up to the recommended levels. Purpose The purpose of our research study is to substitute brown rice for white rice in a
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Guide for Exam 1 Chapter 1: 1. What is a “microbe”? What groups of organisms are included in this category? Microbes (microorganisms) are minute living things that individually are too small to be seen with the unaided eye the group includes bacteria‚ fungi‚ protozoa‚ and microscopic algae‚ viruses Only minority of microorganisms are pathogenic(disease-producing) 2. What are some of the benefits provided by microbes? Decompose organic waste‚ producers in the ecosystem by photosynthesis
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