| |Factors affecting the growth of bacteria | Introduction: Bacteria make up a large domain of prokaryotic microorganisms. And how can be bacteria destroyed? Antibiotics are widely used in the prevention and treatment of infectious diseases. Antibiotic is a substance‚ such as penicillin or streptomycin
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Exploring the diversity‚ abundance‚ and variability of diatom-associated bacteria in the oligotrophic ocean I. Abstract The ecology of diatoms may be better explained by conceptualizing them as composite organisms consisting of the host cell and its bacterial associates. Our previous investigated diatom-bacterial interactions at the single-cell level found that bacterial assemblages varied substantially even among closely related individual host cells. The bacterial assemblages associated with single
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Definition for antibiotic resistant bacteria: WebMD definitions: Antibiotic resistance is a type of drug resistance where a microorganism is able to survive exposure to an antibiotic. Genes can be... en.wikipedia.org/wiki/Antibiotic-resistant_bacteria Antibiotics were designed to kill bacterium that infect us. Unfortunately‚ they are indiscriminate and also kill the good bacterium that are mostly found in the large intestinal tract. This leaves a person open to reinfection‚ or other more
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This Chip Can Tell If You’ve Been Poisoned Quick detection. This 2-cm-wide chip (inset) can quickly test for botulism‚ a deadly disease caused by theClostridium botulinum bacterium. When you are dealing with a deadly poison that can be found in food and is a potential terrorist weapon‚ you want the best detection tools you can get. Now‚ researchers in France have demonstrated an improved method to detect the most deadly variant of the botulinum neurotoxin‚ which causes botulism. Their test
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Trice Riddle Mrs. Jennifer Sikes English 1020 11 February 2009 The Unknown Continent Many people know about it and have seen it on maps before but they still do not pay attention to detail or really care. People still say today that it is a country but it is a continent made up of countries. Many people describe it as the “dark continent” because it has not developed enough to be like an Asia or the Americas. Its hard to really discover what Africa is and how to define it. The land is rich
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There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics to other purposes such as knowing the exact microorganism has to be used to make certain foods. This experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by the lab instructor. The methods that
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Bacteria Prac Aim: To observe the growth of bacteria on Agar plates Hypothesis: That the bacteria will grow in colonies throughout the agar plates except for the one with the anti-biotic loop because some will fight off the bacteria. Method: (Method taken from prac sheet) Plate 1: Use the swab to cover your entire agar plate in your bacteria. You only need one swab of bacteria but be careful to cover the entire surface of your agar in a layer of bacteria. Carefully place an Antibiotic Mastring
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following agar mediums: Blood Agar (pg 168)‚ EMB Agar (pg 170)‚ Mannitol Salt Agar (MSA)(pg 172) )‚ MacConkey Agar (pg 174)‚ and PEA Agar (pg 176) to answer the following: 1. What does the blood agar select for? Blood agar allows distinction among bacteria based on their ability to lyse red blood cells (hemolytic activity). 2. What color is the blood agar? Blood red color. 3. What are the 3 types of blood agar results and how can you recognize them? Beta hemolysis‚ which is the complete
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Lab: The Bacteria Around You James Brunet Ms Owen October 14th‚ 2012 Part 1 Purpose To culture and observe the various types of bacteria found around Canterbury High School. Materials and Methods Refer to pages 422-425 of Biology 11 McGraw-Hill Ryerson and the handout “Gram Staining Procedure”. Observations Table 1: Locations of Bacteria Samples Quadrant | Location of Sample Obtained | 1 | Floor | 2 | Water fountain head | 3 | Auditorium Chair | 4 | Inside of Boys’ Bathroom
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