MLT1: ANTIBIOTIC SENSITIVE LAB Western Governor’s University When antimicrobials are used to treat an infection‚ the antimicrobial used is based on selective toxicity. Selective toxicity is when the agent selected kills or inhibits the bacteria without causing serious harm to the host. The agent must interact with a function or structure of the microbe that is not present or is very different from the host. There are two different types of antimicrobial agents: antibiotics and antimicrobial
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MBK – Lab Report Name: ____________________ Section: ___________________ Antibiotic Sensitivity The Kirby-Bauer Test Interpret your results as described below. INTERPRETATION: · Place the metric ruler across the zone of inhibition‚ at the widest diameter‚ and measure from one edge of the zone to the other edge. HOLDING THE DISH UP TO THE LIGHT MIGHT HELP. · The disc diameter will actually be part of that number. · If there is NO zone at all
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Antibiotic Sensitivity lab A. Define the term selectively toxic. Why is it an important feature of antimicrobial agents? Selective toxicity is the ability of a chemical or drug to kill a microorganism without harming its host. Selective toxicity is important to microbial agents because it enables these agents to inhibit or kill a microorganism by interacting with microbial functions or structures different from those of the host thereby showing little or no effect to the host. B. What
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Proteus vulgaris Antibiotic Sensitivity Assay By: David Toelkes BIO 225 June 12‚ 2012 Lab Partners Alexis Blackmon Cheryl Cardiff Megan Dereani Logan Freeman Abstract Development of bacterial resistance to the antimicrobial drugs identified the need to determine a given bacterium’s susceptibility or resistance to a given drug which prompted W. M. M. Kirby and A. W. Bauer to develop a single disk method for susceptibility testing. This experiment used the Kirby-Bauer disk diffusion
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Antibiotics Various families of antibiotics are used for various types of microorganisms to achieve control and assist body defenses during times of infection. Antibiotics are products of microorganisms that react with and inhibit the growth of other microorganisms. An antibiotic should be selectively toxic to pathogenic microorganisms‚ should not incite an allergic response in the body‚ should not upset the normal microbial population of various body sites‚ and should not foster the development
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I. An Historical Overview of Antibiotics Allow me to begin with an historical overview of antibiotics. The antibiotics field was initiated when Paul EHRLICH first coined the term ‘magic bullet’‚ or chemotherapy‚ to designate the use of antimicrobial compounds to treat microbial infections. In 1910‚ EHRLICH discovered the first antibiotic drug‚ Salvarsan‚ which was used against syphilis. EHRLICH was followed by Alexander FLEMING‚ who discovered penicillin by accident in 1928. Then‚ in
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Antibiotics are types of medicines which destroy or slow down the growth of bacteria. Bacteria are microscopic organisms which can cause abhorrent illnesses such as syphilis‚ tuberculosis‚ salmonella‚ and some forms of meningitis. Before bacteria can multiply and cause symptoms‚ our body’s immune system has special white blood cells which can usually destroy them. Also for the majority of people with these bacterial infections even when symptoms do start to occur‚ these white blood cells are usually
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Antibiotics The term anti biotic is defined as a drug derived from living matter or micro organism. Which either prevents the growth of other micro organism or destroy them. Classification * The spectrum of biological action of anti biotic * It mainly effective against gram positive bacteria. Eg.penicillin‚fucidin * It mainly effective against gram negative bacteria . E.g. strepomycin * It effective against protozao. Eg
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SENSITIVITY ANALYSIS The solution obtained by simplex or graphical method of LP is based on deterministic assumptions i.e. we assume complete certainty in the data and the relationships of a problem namely prices are fixed‚ resources known‚ time needed to produce a unit exactly etc. However in the real world‚ conditions are seldom static i.e. they are dynamic. How can such discrepancy be handled? For example if a firm realizes that profit per unit is not Rs 5 as estimated but instead closer
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A Brief History of Antibiotics‚ Antibiotic Resistance‚ and Antibiotic Alternatives Antibiotic Resistance and Alternatives Antibiotics have been commonly‚ though mistakenly‚ thought of as the ultimate cure‚ for almost all illness‚ for over half a century now. However‚ the intended use of antibiotics is for the treatment of bacterial infections and diseases. Viruses or fungi-related illnesses will not be affected by antibiotics. This misunderstanding of the use of antibiotics has led to overuse
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