Antibiotic Lab Report By: Sierra Toll Hour: 6 Title: The effects of antibiotics on the growth of Escherichia Coli Problem: How do antibiotics affect the growth of E coli? Hypothesis: If Penicillin is applied to the bacteria‚ then the zone of inhibition will be larger. Background: The purpose of this lab was to see how effective a certain antibiotic is to kill E coli. The lab tested three antibiotics‚ Penicillin‚ Erythromycin‚ and Neomycin. The zone of inhibition‚ which is the amount of space
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Name: Yao Xu Class: F Date: 9/20/13 Penicillin Penicillin‚ discover by Sir Alexander Fleming in 1928‚ is a type of antibiotics that can slow down the growth of bacteria or to kill them. Penicillin only affects on bacteria and it doesn’t help with the infection of virus. Penicillin is divided into two groups: natural penicillin and man-made penicillin (Lowe D. 2012). During World War II‚ penicillin saved a lot of people in Europe. The first person saved by penicillin was a nurse named Anne
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Misuse of Cell Phones Apart from the plenteous advantages of cell phones‚ it has become a nerve-wracking part of everyone’s life. In 21st century‚ we ought to get rid of its unnecessary‚ undue uses. “It’s easier for a rich man to ride that camel through the eye of a needle directly into the Kingdom of Heaven‚ than for some of us to give up our cell phone.” Cell phone has reduced the distances‚ but wasting money and time on its needless use cannot be justified. Is it not imprudent? Elimination
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Biology Research Task- Lucy Kerslake What causes antibiotic resistance? Antibiotic resistance occurs when an antibiotic is no longer effective against a particular bacteria‚ making that organism resistant to the effects of the antibiotic. Bacteria become resistant due to selective pressure. Those organisms which resist the antibiotic‚ and do not die from it ’s effects have a greater chance of survival within the host‚ therefore allowing them to reproduce and spread it ’s resistance to other
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Antibiotics are chemicals produced by living organisms that are used to kill or inhibit the growth of other infectious micro-organisms. Most antibiotics prevent the growth of microorganisms‚ which they act on instead of completely killing them. Antibiotics are extra cellular products meaning that they can be extracted for use; Penicillin is an example of this as it comes from the fungus Penicillium notatum. Hormones are chemicals that transfer information and instructions between cells in animals
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Antibiotics in the Long Term Constantly improving our daily lives by making food safer so that we may live longer and healthier is one of the many things we have developed over hundreds of years of trial and error. Unfortunately there are few solutions that are 100% full proof and it is becoming apparent that the antibiotics that millions use on a daily basis might not be a sustainable solution. In the article “What If Antibiotics Stopped Working?” (Voss‚ 2014) the author begins the article with
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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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SEA-HLM-414 Distribution: General Step-by-step approach for development and implementation of hospital antibiotic policy and standard treatment guidelines © World Health Organization 2011 All rights reserved. Requests for publications‚ or for permission to reproduce or translate WHO publications‚ whether for sale or for noncommercial distribution‚ can be obtained from Publishing and Sales‚ World Health Organization‚ Regional Office for South-East Asia‚ Indraprastha Estate‚ Mahatma
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Selection – Antibiotic Resistant Bacteria Read pg 112 -113 & 275 – 277 of you text book. Use this information plus information from secondary sources to answer the following questions so you will have a case study on antibiotic resistant bacteria. In this case study you will need to show how an environmental change can lead to a change in a species. Note: this will also cover content in the Search for Better Health topic. 1. Outline the purpose of anti-biotics Antibiotics are used for
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lolInvestigating the Effects of Antibiotics on E-coli Investigating the Effects of Antibiotics on E-coli The antibiotic that was the most effective was Streptomycin. This was due to Streptomycin being an antibiotic that works on gram negative bacteria. Gram-negative bacteria are bacteria that do not retain crystal violet dye in the Gram staining protocol whereas Gram-positive bacteria are those that are stained dark blue or violet by Gram staining. The bacteria we used were E-coli that are a
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