Bacteria Essay

In medical or science field, biochemical test are used to identify unknown bacteria. In this case three test are essential to identify the unknown #63 and they are MAC agar test, BCP (lactose) broth and SIM deep medium/slant. Methods such as streak plate technique, aseptic technique, and proper handling of the microbe are necessary to apply when conducting these biochemical test. Contamination during the unknown lab project shows carelessness and may put patient in jeopardy due to incorrect…

infections in modern world. Recently we have seen certain types of bacteria develop resistance to antibiotics, labelled 'the superbugs '. We now a see the emergence of diseases that were once a thing of the past, sparking a worldwide panic. In 1929, microbiologist Alexander Fleming discovered penicillin, a naturally growing substance that could destroy certain types of bacteria. Penicillin is a mould that disintegrates the cell walls of bacteria, and after years of testing on animals and humans…

environment. When animals are administered antibiotics, it kills off other bacteria and allows antibiotic resistant bacteria to survive and multiply. This causes contamination of animal waste, which then comes into contact with water, soil, or air (Food, Farm, Animals, and Drugs 2014). Horizontal gene transfer is also a big concern for the environment. In recent years, there has been an increase in antibiotic resistant bacteria found. The antibiotics that are given to the animals get in…

in the world, and remains so even though it has completely banned nontherapeutic antimicrobials from animal husbandry (Hungate, et al., “Ominous”). According to Martin, because of Denmark’s strict restraints on antibiotics, the levels of resistant bacteria have dropped in the livestock and humans in under two years (Martin, “Antibiotics”). Neither Salatin nor the Danish pork production have been met with negative consequences to their businesses because of the policy they have implemented…

Objective Review: 1. Describe the purpose for using aseptic technique in collecting specimens Aseptic technique is used to prevent contamination of specimens by pathogenic organisms. The goal of maintaining asepsis is to not introduce any other organisms to the patient and prevent the spread of any organisms the patient may be carrying. Certain practices are used to help decrease this from occurring including cleaning, sanitizing, and disinfecting. Aseptic technique is an important process to…

The subject that is being read is Prokaryotes. An example of a prokaryote is bacteria. Bacteria traits are usually for a genus and are extremely important to the cell. Bacteria come within various shapes, such as spirals, cocci, rods, etc. These shapes are very useful for the prokaryotes. Prokaryotes do not have a developed nucleus instead the cell has a nucleoid which is also known as a nuclear bound and it lacks the cytoplasm membrane. Prokaryote structures consist of the flagella, pili, and…

Let’s start the introduction by talking about our main target, Escherichia coli or how it is mostly unknown, E.coli, are a diverse and large group of bacteria found food, the environment, and in the intestinal tracts of humans and animals were it normally inhabits and it can also cause infection in other parts of the body, especially the urinary tract. Its name was given by a German physician called Theodor Escherich and it is the most common member of the genus Escherichia. E.coli is “a…

which is characteristic of a nonliving particle. Most viruses contain either DNA or RNA enclosed in a protein coat called a capsid, and upon infecting a host it induces the host cell’s replication machinery to reproduce. A virus that only infects bacteria is called a bacteriophage. Bacteriophages consists of the genetic material within the capsid, and they may also have a complex protein tail attached to the capsid. The tail helps the bacteriophage attach, and it also…

were performed in order to identify which unknown is gram positive and gram negative. Using selective and differential media, like MacConkey agar which allows the growth of gram negative bacteria only that are able to ferment lactose. Also, mannitol agar was used which isolates and detects gram-positive bacteria. As well as blood agar, which is a nutritive media with differential properties in respect to hemolysis. The catalase test indicated catalase production and the coagulase test indicated…

Introduction Not only is the human body colonized with a large variety of microorganisms, the environment people live in is also filled with countless bacteria and other microorganisms, which are known as environmental microbes. More importantly, since people spend the majority of their lifetime in indoor environments such as schools, houses, and hospitals, the indoor surface microbes hence play a crucial role in human health. Scientists have discovered that indoor microorganisms are associated…