Microorganism

The 20th century saw a series of remarkable discoveries that changed the face of medical practice. Among the most important was the discovery of antimicrobial agents, beginning with the synthesis of arsphenamine by Paul Ehrlich as the century dawned [1]. With this discovery, the dreaded scourge of syphilis was brought under control, although not eradicated. However, the toxicity of the drug made it less than ideal as an antimicrobial agent. Shortly thereafter, optochin (ethyl cupreine) was tried…

The general term “microbes,” is used to describe any organism that cannot be seen by the human eye. While individual microbes cannot be seen, these microorganisms usually form colonies in which their species can be observed and categorized. In this experiment, the effect of environmental selection on biodiversity are measured and compared in two locations. The inside of an air vent and the top of a cabinet were passed over with cotton swabs, which were then used to streak agar plates to…

The aim of this experiment was to analyze a sample of finished beer for possible microbiological contaminants such as lactic acid bacteria, Gram-negative bacteria, and wild yeasts/molds. This was accomplished by using a series of spread/pour plate dilutions with various media types that contained selective ingredients. By cross-referencing the different medias and comparing observations, the generalized groups of contaminants were able to be confidently conjectured. Growth was witnessed on DRBC,…

• Bacteria, are single-cell microorganism with no nucleus that had a sphere, rod, and spiral shape and branching threads. Ranges in diameter between (0.5- 1) µm and in length between (2-4) µm however, they are either a parasite or live independently they are found in all living things and in all environments. Some bacteria in drinking water can cause disease such as salmonella, total coliform (including fecal coliform and E.coli), Shigella, Legionella, and Campylobacter and “their presence…

of resources but also carries potential serious and life-threatening adverse effects for the users (2). Resistance to antimicrobial drugs by the microorganism is increasing due to improper use of antibiotics. Microbial resistance is one of the major issues of the health worldwide (3). Using of antimicrobials and the emergence of resistant microorganisms had to get attention since the introduction of penicillin. Bacterial resistance has a negative impact on treatment fate, increasing death rates…

The Effectiveness of Bacteria Killing Agents Bacteria are everywhere, you may not be able to see it, but it is present. Many different bacteria killing agents exist. For example, there are antibiotics, which can be helpful, but harmful, and are usually prescribed by doctors. Some people also use essential oils whish are safer and healthier. Bacteria can be good and bad. Good bacteria help to keep you healthy. The bad bacteria can make you sick. Poor diets and constipation can lead to bad…

Title: Discovering Microorganisms Inside of the Lab and Out Introduction: Microorganisms are everywhere, and they are usually associated with sickness or disease like E. Coli or Staphylococci. In reality, microorganisms help more than they harm. Microorganisms in our bodies help make everyday normal bodily functions possible. For example, normal microbiota found on the skin and gastrointestinal microbiota found in the digestive tract. If it was not present, it would make humans a lot more…

Susceptibility can vary within bacteria of the same species due to different strains; with some strains being more resistant than others. Antimicrobial resistance is the ability of a microorganism to survive and multiply in the presence of an antimicrobial agent that would normally inhibit or kill this species of microorganism. Antibiotic susceptibility tests are done in order to determine, which specific antimicrobials will inhibit the growth of bacteria or fungi that causes the infection. The…

Antibiotic sensitivity Introduction: Initially, when treating patients for bacterial infections it is important to understand the type of microorganism being dealt with and what type of antibiotic will kill it. There are three main characteristics that scientists look for in useful antibiotics: the toxicity, manufacturing, and its ability to work and be expelled safely. First, is the ability of the antibiotic reaching its target with minimal toxicity to the patient. The second characteristic is…

current condition with a viral infection. 1. I would disclose to Jane that her doctor would not prescribe an antibiotic with her current condition is that she does not have a bacterial infection that was diagnosis by Dr. Merry. Viruses are not microorganisms susceptible to treatment with antibacterials that would be ineffective for her infection. (Fulcher. pg. 285) However if Jane has a secondary bacterial infection present with her current viral infection can allow for antibiotics to be use.…