ASBiology and Disease * Causes of disease * Pathogens Disease suggests a malfunction of the body or mind which has an adverse effect on good health For a micro-organism to be considered a pathogen it must * Gain entry to the host * Colonise the tissue of the host * Resist the defences of the host * Cause damage to the host tissues Pathogen Infection Disease Entry pathways * Gas exchange system * Digestive system Natural defences * Mucous layer
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them without a microscope. Black Hole A Black hole is a place in space where the gravity is so strong that nothing can escape it pull. Cyclotron A type of particle accelerator that was created first in the 1930’s. It was made of two Dshaped cavities in a constant magnetic field. Dark Matter A form of matter that is not like ordinary matter and is not described by the standard model. Electron Accelerator A particle accelerator that is designed to speed up electrons. Flavor A
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used as a redox dye. Oxidized DCPIP is blue‚ DCPIPH‚ which is reduced by a single electron‚ is pink‚ and fully reduced DCPIP is colorless. It is often used in measurements of the electron transport chain in plants because of its higher affinity for electrons than ferredoxin. It is also used as an artificial electron acceptor for enzyme assays. ( ) A Hill Reaction is used to measure the rate of photosynthetic electron transport. When chloroplasts were suspended in an aqueous extract made from an
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together for the microscope lens to make them appear separate; two points closer than the limit of resolution will blur together 6) You should always carry your microscope using two hands. One on the base of the microscope and the other supporting the neck. 7) At what objective is it proper to use oil immersion? Only on objective 100x never on objective 10x or 40x 8) What are the proper two items to clean the microscope lens? And when do you clean it? To properly clean the microscope you clean
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in 5 ml water ) add to them‚ after 5 min mix with them 1.5ml K-H and add H2O2‚ in different amount of Ag and PS for half hour‚ then washing 3 times using water . We measured the absorption by UV and the morphology using the transmission electron microscope ( TEM). 4.3 Table of Materials Name Cemical Name Type Name of Compony Copper(II) sulft pentahydrate CuSo4.5H2o AR Sinopharm Chemical Reagent Co.Ltd Sodium hydroxide NaOH AR Sinopharm Chemical Reagent Co.Ltd Potassium Sodium Tartrate Tertrahy
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Work Specific Skills Work specific skills focusing on the use of standard operating procedures for different types of laboratory equipment‚ the calibration of standard laboratory equipment and the use of a lab book. This was chosen as a priority for me due to these skills being an essential part of any work I wish to do in the future‚ working or continuing my studies with in a lab. This set of skills is relevant to my skills matrix because it is a skill I have only had the chance to develop at
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1- Synthesis of silver nanoparticles by Bacillus sp.: The microorganisms in the most contaminated toilet Sink were isolated by dilution technique. The dominant bacterial strains are identified as Bacillus sp.‚ on the basis of morphological and biochemical characteristics. Gram’s staining: Gram positive and rod shape. They were serially diluted and spread on nutrient agar plates. The starch has been hydrolyzed and a clear zone by the addition of iodine solution. Visual identification: When bacterial
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B.Sc. First Year Semester – I Paper I .Fundamentals of Microbiology Credit - 1 1 Scope & relevance of Microbiology i) ii) iii) Definition & concepts Types of microorganism Distribution of microorganisms in nature 2. Development of Microbiology as a Scientific Discipline 1.1 History i) ii) iii) iv) v) vi) Credit – 2 Early observation of microorganisms Spontaneous generation conflict : Contribution of scientists Recognition of the microbial role in diseases. Koch’s postulates Recognition of microbial
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Airway mucus is part of inborn immunity that facilitates the elimination of inhaled microorganisms. Antibacterial mechanisms such as lysozymes and defensins‚ which are contained in airway mucus‚ are key components of this inborn immunity (Gerson et al. 2000). While this defense mechanisms remains prevalent in cystic fibrosis patients it appears to be compromised in that it allows the growth of Pseudomonas aeruginosa in airway mucus. The fact that people with cystic fibrosis are equally exposed to
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For example‚ Sampat describes some of the better known products of biomedical research that are now used in multiple different fields. Some of the discoveries he talks about include the scanning electron microscope‚ the computer‚ and the Cohen-Boyer Recombinant DNA technique (Sampat). Biomedical research helped to create some of the most important pieces of technology we have to do‚ like the computer which is today almost a necessity by most standards
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