Bacteria Essays

Does Cerumen Have a Risk for Transmission of Diseases_

I learned in the A & P course that ear wax (or cerumen) is a waxy secretion by ceruminous gland (= modified sebaceous gland), mixed with sloughed epithelial cells, which inhibits the growth of certain bacteria due to its acidic pH. It also protects the skin of the external auditory canal by providing a waterproof layer, so, it’s something beneficial to us. Sure enough, there appear to be a number of articles written to support this – “Bactericidal activity of…

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Unknown Lab Report

I. Introduction My unknown organism #6 is Morganella morganii, which is a gram-negative bacillus rods commonly found in the environment and also in the intestinal tracts of humans, mammals, and reptiles as a normal flora. (3, 5) This bacterium Morganella morganii, was first discovered in the 1906 by a British bacteriologist named H. de R. Morgan. (2) Despite its wide distribution, it is an uncommon cause of community-acquired infection and is most often encountered inpostoperative and other nosocomial settings. (2,…

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Evolution_ How why and When

What Is Evolution? Biological evolution refers to the changes that occur in a population over time. These changes are produced at the genetic level as organisms’ genes mutate and/or recombine in different ways during reproduction and are passed on to future generations. Sometimes, individuals inherit new characteristics that give them survival and reproductive advantages in their local environments. These characteristics tend to increase in occurrence in the population, while those that are harmful decrease in frequency. This process of making…

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Polio

In this world, there are over 12,000 diseases caused by either bacteria or viruses, and most of them are yet to be discovered. One of the dreadful diseases revealed is polio (which is shortened for poliomyelitis) (Ballard). The polio virus enters the body through the mouth, multiplies in the throat and intestine, and spreads through the blood to the central nervous system. Thus, the virus attacks the CNS, which can lead to paralysis. The paralysis would start with the legs,…

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Ubiquity of Microbes

Bacteria are the most widely distributed organisms in the biosphere. They are found in all different types of soil, water and even in the bodies of other living organisms. Every single place that humans have explored on the Earth, have shown to contain microbes. Bacteria are living organisms and like all living organisms, they require energy and carbon sources in order to metabolize and reproduce. And like all living organisms they respond to changes in their environment. Ubiquity is defined…

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Microbial Transformation of Steroids

Abstract Hydroxylations are possibly the most widespread type of steroid bioconversion. Hydroxylations can be used to buildintermediates for further chemical synthesis to provide the steroid molecule with the adequate structure for therapeutic applications. Microorganisms able to hydroxylate steroids in positions C1 to C21 and in position C26 have been reported. 11 α hydroxylation is regarded as essential for anti-inflammatory action. Present study was promoted to extend the investigations to evaluate potentiality of this local oil contaminated soil isolates for transformation…

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Communication Cycle

Human spoken and pictorial languages can be described as a system of symbols (sometimes known as lexemes) and the grammars (rules) by which the symbols are manipulated. The word “language” also refers to common properties of languages. Language learning normally occurs most intensively during human childhood. Most of the thousands of human languages use patterns of sound or gesture for symbols which enable communication with others around them. Languages seem to share certain properties although many of these include exceptions….

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Using Chlorhexidine Alcohol (chg) Before Surgery

A1. Procedure The preoperative procedure of using with chlorhexidine-alcohol (CHG) before surgery has been proven to be more effective to reduce the number of surgical site infections (SSI) than the use of povidone iodine. By reducing the number of infections post surgery, it can lower patient morbidity and can reduce hospital stay time and eliminate further unnecessary costs. A2a. Basis for Practice (who determined ) The basis for changing the method of using chlorhexidine-alcohol bath before all surgeries and not…

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Lyme, the Silent Killer

Lyme disease is disease transmitted by the deer tick also known as the black legged tick. It is caused by an infection called Borrelia Burgdorferi which is a type of bacterium called a spirochete. The deer tick can transmit the spirochetes to humans and other animals causing them to become infected with Lyme disease. Lyme disease first begins as a multi system inflammatory disease which first attacks the skin in the localized stage, then spreads to the joints the nervous…

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Comparison of Prokaryotic and Eukaryotic Cells

Comparison of Plant and Animal Cells Introduction Eukaryotic cells are very complex; there are many organelles, each serving a distinct function, present in eukaryotic cells. We can divide the eukaryotic group of cells in to two main groups, according to the presence of these membrane bound organelles, and the structural differences amongst the cells and their organelles. The two groups of eukaryotic cells are plant and animal cells. Nucleus The reason that plant and animal cells are not divided in…

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Gram Positive Pathogenic Cocci

My original hypothesis for the individually collected throat culture on Blood Agar Plates, that it would show a mixture of alpha, beta, and gamma hemolysis, was based on the results of the class control samples of S. pneumonia, S. aureas and S. epidermis. In these controls S. pneumonia shows alpha and beta hemolysis while S. aureas and S. epidermis showed beta and gamma hemolysis respectively. This hypothesis was based on the thought that the upper airway of most people would…

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1920s Medicine

The 1920s had many discoveries and innovations when it comes to medicine and science. Many of the things that we now take for granted were just getting their start during the 20s. Throughout the 1920s, new innovations in the medical and science field led to the discovery of vitamins and knowing more than ever before about the human body. New vital drugs and vaccines were created in this era that are hard to imagine not having today. The invention/discovery of…

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Bacillus, Mycoplasma, and Escherichia

In a clinical setting signs and symptoms can lead a care taker down a treatment path, but if a bacterial infection is suspected, a definitive answer from the “lab” is needed before prescribing medications. In this instance a yellow sputum was produced by the patient, which will be taken to the lab an analyzed under a microscope.There are three suspect bacteria, which are Bacillus, Mycoplasma, and Escherichia. A discussion of staining procedures, as well as anatomical differences will be discussed…

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Ap Biology Free Response

“Scientists have recently proposed a reorganization of the phylogenetic system of classification to include the domain, a taxonomic category higher than the kingdom category.” A. The three-domain system allows for the conclusion that the previous five kingdoms were more connected than was believed. Out of the five previous kingdoms: Animalia, Plantae, Protista, Fungi, and Monera, four of the five kingdoms were placed in the same domain- Eukarya. The one remaining kingdom was separated into two domains- Bacteria and Archaea. This…

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Application of Lactic Acid Bacteria

In food industry Recent years the interest increased in using LAB by using bacteriocin-like inhibitory substances (BLIS) because of their potential use as a natural antimicrobial agent to enhance the food safety of food products and increase the nutritional values of the food. Foods that fermented by LAB such as cheese, kimchi, fermented sausages, wine, yogurt and pickles have not only a greatly extended shelf life compared to the raw materials from which they are derived, but also enhance the…

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