Clinical microbiology MLT1 Task 9 Antibiotic Sensitivity Chandra Evans A) Selectively Toxic is defined by the fact that the antimicrobial treatment used, destroys selective microorganisms, but doesn’t harm the host. Selective toxicity of an agent is necessary so that during treatment the agent will not affect or interact with the normal functioning microorganisms in the host. The agent will interact with microbial structures and functions that are not the same as the microbial structures of the host. B) Broad spectrum antimicrobials are effective against a large range of both Gram-negative and Gram-positive microorganisms A pro of this type of agent is the fact that a variety of bacteria is targeted at the same time when used. A con is the higher risk of destruction of normal body flora.
Having researched into two antiseptics, I have decided that TCP and Dettol antiseptics were likely to give me some sort of effective data in stopping bacterial growth in which I will have data through my experiment. After having completed my experiment I will be able to identify which antiseptic is the most effective in stopping bacterial growth, providing my client group with the best antiseptic to use within their work place in fighting infections and help within the first aid assistance in the emergency department within the
ANTIBIOTICS 1. For each of the following antibiotics name the microorganism responsible for their production, using the appropriate naming convention. a) Penicillin: Penicillium chrysogenum/P.notatum b) Erythromycin: Saccharopolyspora erythraea c) Vancomycin : Amycolaptosis orientali 2. Explain why antibiotics are produced by microorganisms. Antibiotics are produced by microorganism because they inhibit the growth of or kill other microorganisms; they are effective in low concentrations and act on specific species of microorganisms.
Unknown Lab Report: Enterobacter cloacae Jessica Sainvil Professor Cupido Bio 253L1 Thu 9:30-12:30 Due Date: 12/6/12 Unknown#103 Introduction The bacterium Enterobacter cloacae isolated from the given #103 was a Gram-negative Rod. The purpose of this lab was to isolate and identify the genus and species of an unknown bacterium. It is important to identify an unknown microorganism because knowing how the bacteria work and how it is structured means knowing how it can affect humans. Unknown bacteria may also be used clinically many pharmaceutical drugs are based on products made by organisms (Katzung, B.G.2004). In order to identify the unknown organism a series of tests were performed.
6/28/2012 The 1st lab procedure performed was the gram stain. Previously, before starting the gram stain I prepared a bacterial smear on a glass slide and used the heat fixing method which was done to help the bacteria cells adhere to the glass, kill them, and also helps make the cells easier to stain by coagulating the cells proteins. The gram stain test helped me identify rather my bacterium would be a negative or positive and determined the microscopic morphology (shape, and arrangement) of my bacterium as well. The test
Food Irradiation and Its Effects on Consumer Health Food irradiation is a process that the food industry uses to reduce harmful, disease causing bacteria and increase the shelf life of foods by destroying decay causing microbes. While this process has been proven to be safe by the Center for Disease Control and the Food and Drug Administration, public misconception of the process has created doubts as to its safety and effectiveness. Through public awareness and education of this process, many concerns and misbeliefs can be dispelled. Food irradiation is performed using three different technologies, using three different kind of rays: gamma rays, x-rays, and electron beams. The different uses will depend on the food being irradiated as each technology has strengths and weaknesses.
The results from this test were negative. The last test I performed was a Malonate Utilization Test. The purpose is to see if the microbe can use the compound malonate as its sole source of carbon and energy for growth. The lab results indicated a positive reaction. Procedure: Conduct Bacterial Growth Test: 1.
Aureomycin was discovered to be successful in defeating the disease once the disease was resistant to streptomycin. The use of aureomycin was a big discovery because it was used to treat other bacterial
The first example is the prophylactic us of antibiotics in fish farms. This has led to more resistance bacteria strains which can transfer resistance to human pathogens. This in turn has promoted the evolution and spread of genes that are resistant regardless of their origin. Although the use of antibiotics by humans is not the only reason for the resistance problems, you can find strains of antibiotic resistance in fungi and bacteria that are in the soil. Our pets are reservoirs for carrying strains of antibiotic resistance bacteria that can be transferred to humans.
For example, tomatoes are injected with fish gene to make a new product with better quality because the components in fish can protect fruit from freezing. Nevertheless, this matter can cause a serious consequence for people who get allergic with fish. Hence, labeling will allow consumers to identify and steer clear of food products that could cause them problems. Last but not least, labeling GM foods