Microbiology Essays

Identifying Salmonella Choleraesuis

The purpose of this study was to determine what an unknown bacteria was using several different microbiology lab techniques including an API test, an oxidase test, a gram stain, a hanging drop slide, and morphology identification. The unknown bacterium, which was contaminated with Serratia marcescens, was isolated by streaking the bacteria solution to single colonies. The isolated unknown white bacteria, had the appearance of circular form, convex elevation, entire margin, elongated cocci. The tests than showed that the bacteria was…

Read >>

Adhd_ Universal Precautions

Universal Precautions Universal precautions refers to the practice, in medicine, of avoiding contact with patients’ bodily fluids, by means of the wearing of nonporous articles such as medical gloves, goggles, and face shields. The practice was introduced in 1985–88.[1][2] In 1987, the practice of universal precautions was adjusted by a set of rules known as body substance isolation. In 1996, both practices were replaced by the latest approach known as standard precautions (health care). Nowadays and in isolation, practice of…

Read >>

Introduction to the Microbial World History of Microbiology

Part A. This letter is in response to your story which was published in your website and broadcasted in your stations regarding Edward Jenner as the most prolific microbiologist that ever lived and have contributed much to the improvement of microbiology and public health. I would like to make a point that several other scientists have contributed much to that of the works of Jenner on eradicating small pox virus by vaccination. He may have started the use of vaccines…

Read >>

Introduction to Prokaryotes

Prokaryotes are single-celled organisms that can survive in extreme environments. Bacteria is the more numerous type of prokaryotes. The group hypothesizes that the samples taken from different environments will all cultivate diverse morphology in fast growing rates in each environment. The aseptic technique was used to cultivate bacteria from different environments. The diversity of morphology and the growing rate of the bacteria was different in each environment. Introduction Prokaryotes are the oldest known life-forms, having existed for the last 3….

Read >>

Ah Antimicrobial Investigation

This is a project starter, suitable for Advanced Higher biology investigations or A-level extended projects. Don’t forget to credit this resource in your bibliography by including the title, the website, the web address and the date you accessed it. Background information One often sees claims that a wide range of products, both synthetic and natural, are antibacterial, antifungal or both. Disc diffusion tests provide a simple and reliable method of testing antibacterial or anti-yeast properties. Sterile discs of filter paper…

Read >>

Yogurt

There are thousands of microorganisms present at almost every surface. Some of them are pathogenic which causes diseases but most of them are useful especially in the food industry (Lasztity, n.d.). Microorganisms have been used for preparing food products such as cheese, bread, yogurt, etc, for a long period of time without even knowing that the process involves fermentation of the starting material (Pai, 2003). Fermentation is the process of utilizing nutrients anaerobically (D’Souza & Killedar, 2006). Yogurt is a…

Read >>

Proteus Mirabilis

The genus Proteus, according to Bergey’s Manual of Determinative Bacteriology, is a group of straight rod Gram negative bacteria around 0.4-0.8 μm in diameter and 1-3 μm in length. In the microscopic test done, it was seen that the unknown culture contained rods that are on the shorter side, thus was identified as bacteria that appear to be coccobacilli. Because of the presence of peritrichous flagella, species included this genus are motile and most strains swarm in periodic cycles, producing…

Read >>

Identification of Two Unknown Bacteria

In the field of microbiology, being able to effectively identity bacteria from a given sample is indeed of vital importance. To further expound, in relation to medical applications, the identification of bacteria from clinical samples is essential in order to determine whether the treatment being given or to be given for an infection would indeed be effective (Crowley, 2010). In relation to this, if the pathogenic bacteria have not been appropriately identified then it would be logical to assume that…

Read >>

The Great Qualities of Alexander Fleming

In the novel Of Mice and Men, George and Lennie demonstrate many qualities of friendship. Three qualities that can help cultivate a sincere friendship are intelligence, bravery, and selflessness. Alexander Fleming was a biologist who lived from 1881 to 1955. Though his early education, and his achievements in his research, he lived out the qualities of intelligence, bravery, and selflessness, and therefore would have absolutely made for a very true friend. Alexander Fleming showed much intelligence in his early life…

Read >>

Disease Caused by Environmental Exposure

Environmental Diseases In epidemiology, environmental disease is disease caused by environmental factors that are not transmitted genetically or by infection. Apart from the true monogenic genetic disorders, environmental diseases may determine the development of disease in those genetically predisposed to a particular condition. Stress, physical and mental abuse, diet, exposure to toxins, pathogens, radiation, and chemicals found in almost all personal care products and household cleaners are possible causes of a large segment of non-hereditary disease. If a disease process…

Read >>

The Most Significant Contribution to Fight Against Infectious Diseases

In this essay I am going to discuss all three of the people mentioned above but I will also show you who I believe is the most influential and why I believe this. These people changed our medical knowledge forever and will always be remembered for this. Firstly there was Edward Jenner, he was born in 1749 and died in 1823, however in his 17 years he made one of the greatest discoveries in medical history. He had heard an…

Read >>

Microbiology

1.List five environments where you are likely to find microbial growth: Lakes, soil, oceans, tundras, deserts 2.How do microbes contribute to soil fertility? The decomposition that microbes take part in help release mineral nutrients, such as potassium and nitrogen, from dead organic matter and allowing primary producers the nutritional access. They also produce CO2 and CH4 to release into the soil and atmosphere. 3.Describe the growth you observed in each of your samples: Soil: I chose an area of soil…

Read >>

The History of Microbiology

I. Introduction. Microbiology is the study of living microorganisms. The term micro means extremely small, and with regards to biology, this refers to minute living things that are individually too small to be seen without the aid of a microscope. These invisible microorganisms include bacteria, virus, fungi, protozoan and other microscopic organisms. The study of microorganisms is very important because it helps explains why people get sick and who or what is responsible for it. Prior to the development of…

Read >>

Microbial Flora on Restaurant Beverage Lemon Slices

December 2007, Volume 7; Number 5, Page 18; http://www. neha. org Forty-three visits to twenty-one different restaurants show bacteria on an item we often request (and sometimes don’t) to garnish our water, soda, tea or alcoholic beverages. The study conducted, investigated whether lemon slices used in restaurants as drink garnishes contain microbial contamination that may be ingested by restaurant patrons. Seventy-six lemons were tested; two samples were collected as soon as the drink was served, before the patron took a…

Read >>

Ebola Virus_ Glycoprotein Modification Study

Abstract Retroviruses are a family of enveloped RNA viruses that are defined by their common characteristics in structure, replication properties and composition. These viruses are important in research in many different areas of science, such as biology, genetics, medicine, cancer, and biotechnology. The process of pseudotyping for retroviruses, in particular, allows researchers to investigate the entry of these viruses into cells. One particular retrovirus, the Ebola virus, was investigated to illustrate how the virus glycoproteins are integrated into retroviruses that…

Read >>