Microbiological media

specific organism. Methods and Procedures Our group was given unknown bacterial sample number 7 to test and identify. As with all other experiments where we dealt with bacteria, aseptic techniques are necessary to prevent contaminated test samples and incorrect data. Our first procedure was to streak two agar plates to observe growth factors. A sterilized inoculating loop was used to streak first a mannitol salt agar (MSA) plate. This media is selective and inhibits the growth of Gram negative bacteria. Ideally any observable growth in this media would imply that the test organism is a Gram positive bacteria. Next a sterilized inoculating loop was used to streak a MacConkey agar (MCK) plate with our unknown organism. This is a combination media, meaning it is both selective and differential. It will inhibit the growth of Gram positive bacteria while allowing Gram negative growth. It differentiates by pigment change in response to lactose fermentation. Organisms that carry out lactose fermentation will form bright pink colonies in this media. The results of these growth medium tests will be the first step in our objective to determine our unknown organism. In addition to growth tests, we have biochemical tests at our disposal to aid in identifying our bacterial sample. The Lysine Iron Agar (LIA) black cap tube will be used to test decarbonation lysine, if positive for decarbonation it will have a purple slant and if negative it will be a darker red color. The LIA tube…

ordered by a physician, we can assume the patient is experiencing some type of bacterial infection in the bloodstream. Cultures are done to detect an infection that is happening and from there it can be narrowed down to a specific cause and appropriate treatment can be given. When collecting a sample, the nurse or phlebotomist will collect two sets. A set consist on of anaerobic bottle and one aerobic bottle. The two different sets should be collected from two different veins to “increase the…

the unknown experiment is to understand and identify a gram positive and a gram negative. Bacteria can be very helpful in clinical uses and many pharmaceutical drugs are based on the organism. Knowing how a bacterium works and how it is structured can be crucial to determine how it affects each individual. Several biochemical tests were performing to separate and determine the identities of the microorganisms. Broth tube number 31 containing unknown microorganisms. One of the microorganisms…

Table of Contents: Introduction………………………………………………………………………………………………………………………..2 Aim……………………………………………………………………………………………………………………………………….2 Background Info……………………………………………………………………………………………………………………2 Hypothesis…………………………………………………………………………………………………………………………….2 Variables……………………………………………………………………………………………………………………………….2/3 • Independent…………………………………………………………………………………………………………………………..2 • Dependent……………………………………………………………………………………………………………………………..3 •…

Gerard Jones is an American author and a comic book writer about media. Jones argued in his essay “Violent Media Is Good for Kids” to discuss several good reasons that violent media is beneficial to kids. In Jones’s essay, he talked about many good reasons that led me to be certain of his reasons why violent media are helpful to kids. Jones believes violent media assistances children to be more courageous to face their obstacles. Jones gave a very good example of his son, who was not able to…

uses technology to give people their food ASAP, so they do not have to wait. Fast food, with the help of technology, has made it possible for people to grab food to go at any point and time, without having to wait a few minutes. It has affected the ability for parents to be able to effectively teach and communicate with their children. Technology captivates the hearts and minds of youth; completely captivating their attention and distracting them from the important moments of life. And…

Does Social Media Bring Us Closer-or Make Us Loners, written by Wency Leung, is about one main question in which Leung asks people to consider their relationship with social media and technology. In this article, Wency Leung argues how technology is distracting us from personal experience with others. She wants the reader to consider if social media and technology help create friendship or help with creating some barriers between people. Leung argues against multiple sources and uses those…

Imagine a cluster of people in a room, especially teenagers, that are hanging out with one another. Instead of the enjoying each others company they are all on their phones and essentially disregarding each others company. “Social media is an amazing tool, but it’s really the face-to-face interaction that makes a long-term impact.” remarked Felicia Day. Technology allows people to have many opportunities to communicate with one another, but the quality of that communication is generally poor. As…

The history of communication media technology has been assessed from the controversial perspective of the benefits versus the negative implications it has on society. There is no doubt that the world has witnessed a long history of technological advent, adoption and use, resulting in the current state of rampant technology media application in the modern society (McQueen, 2003). Technology advancement has taken different forms, which may range from video, to computer-based, internet and now the…

helps us in maintaining our daily lives. But these technology start to maintain our social life where social media plays their part. Social media allows people to connect themselves with others from around the world. People don’t have to worry about distance or time since social media only requires small amount of time to communicate with other in different places. Especially with smartphones, people have more flexibility to communicate where they are able to communicate anywhere and anytime…