Essays on Bacteria

Expository Essay Examples

The medical fraternity is undergoing tremendous changes credited to the application of biotechnology. The latter refers to the application of technology in biological research activities. This expository essay shall essentially examine the changes in medicine courtesy of technology. It shall essentially concentrate on the continuing study of microbes and their effects on the lives of human beings. Two articles come into focus; “Tending the Body’s Microbial Garden” and “Microbes ‘R’ Us. It is instructive to appreciate the context from which the two articles are written. Both authors, Carl Zimmer and Olivia Judson, assume an embracive approach to medical

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5 Pages

How To Prepare A Peruvian Ceviche Essay Example

Introduction

With its origins in Peru, a Ceviche is a fresh raw dish that consists of fish marinated in a variety of citrus juices such as lime, orange or lemon and then spiced with chili peppers and other flavoring ingredients. One theory stipulates that the dish originated with the indigenous locals of Northern Peru. The Ceviche has in recent years spread to many parts of the Americas and it has become a common and popular dish. Essentially, a Peruvian Ceviche is a marinated seafood salad. In addition to the chili peppers, other seasonings such as coriander, chopped onions and salt

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2 Pages

Report On Unknown Lab # 16

UNKNOWN #16

SUMMER 2013
INTRODUCTION
Purpose
The purpose of the lab is to separate characterize and identify microbes from unknown mixed culture using the morphological and biochemical methods.

Theory

The process of identifying bacteria is a systematic and careful process which uses various techniques to narrow down the bacteria types which are present in an unknown culture of bacteria. This process produces advantages for many factors of research of microorganisms and assists in the proper treatment of patients (Aneja 10). Several tests were performed to give the fermentation abilities, availability of specific enzymes and specific biochemical reactions.

MATERIALS AND METHODS

The experiment started off by

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3 Pages

Effectiveness Of Bacterial Disinfectants On Surfaces Of Mechanical Ventilators Article Review Sample

Introduction of the research project

The purpose of this article was to assess the rate at which bacteria contaminate the surface of ventilator equipment and other equipment being used by the hospital for the patients care. The implications of this study are many, as there are many microorganisms that can grown on environmental surfaces and causes severe bacterial infections in the patient. The hypothesis is that the use of 75% alcohol will decrease the contamination rate of mechanical ventilator systems.

Methods

The study was done at Mackay Memorial Hospital in Taipei City, which has a 15- bed respiratory care center. All patients included in this

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2 Pages

Example Of Research Paper On Antimicrobial Agents: Classification And Application

Antimicrobial agents can be categorized as antibacterial, antifungal, antiparasitic, or antiviral agents because each group is used to treat infections caused by bacteria, fungus, parasites or viruses. Further classifications within those categories are used to differentiate between agents effective against specific pathogens. For example, aminoglycosides are primarily used to treat gram-negative infections while antianaerobic agents are used to cure infections caused by gram-positive bacteria and anaerobic infections (Arcangelo & Peterson, 2013).
Viral and bacterial infections are different, but the differences between them are not always obvious. As a general rule, bacterial infections usually manifest as strep throat, urinary tract infections,

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2 Pages

Example Of Essay On Tuberculosis

Tuberculosis is one of the oldest diseases known to cause medical illness in humans, and is the second most common cause of death due to infection worldwide (Riley, 2013). The bacteria mycobacterium tuberculosis (M. Tuberculosis) causes the disease; and while it is widely known that it affects the lungs of the individual, other organ systems may be affected in nearly one-third of cases (Harrison’s, 2008). Proper treatment in drug-susceptible strains leads to a cure; however, drug resistant strains or improper treatment has a 5-year survival rate between 50-65% of cases (Harrison’s, 2008). Transmission is through respiratory droplets

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3 Pages

Effect Of Adding Yogurt To The Lactic Acid Fermentation Process Of Milk In Terms Report Example

(City, State)
Lactic acid fermentation refers to a biological process where sugars such as fructose, glucose, and sucrose undergo conversion to form cellular energy lactic acid. The process is an anaerobic kind of fermentation reaction and takes place in a number of bacteria as well as in animal cells like the muscle cells (Campbell & Reece, 2005). The application of lactic acid fermentation is broad especially in the food industry (Tempeh, 2008). Some of the bacteria that are involved in the production of lactic acid include pediococcus cerevisiae, leuconostoc mesenteroides, bifidobacterium bifidus, and streptococcus lactis (Tempeh, 2008). The process is

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4 Pages

Example Of Essay On Bacteria

Introduction

Among the most diverse organisms are bacteria. They are microscopic organism whose identification is done using a method called gram staining. Bacteria are found in different habitats. Bacteria are both harmful and beneficial to human beings. With the advancement in technology, even the finest details of these organisms can be studied. There are various types of bacteria. They differ in shape, size, function and formation. Below are a few examples.

Escherichia coli(E. Coli)

It is a bacterium that is normally found in the gut of animals that are warm blooded. It belongs to the family enterobacteriaceae. It is formed through DNA replication.

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1 Page

Essay On Food Testing

Introduction

Food items are always prone to spoilage which in most of the cases is precipitated by an increase in bad microbes that cause the food to change its property and thus food becomes unsafe for eating. The main purpose of inspection of food is to trace the presence of bad microbes that are available in most of the food products but below certain level they are harmless. Microbes are nothing but cells which are so microscopic that it is not possible to detect them when they are in very small numbers. In order to detect the presence of harmful

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7 Pages

Example Of Chemistry & Microbiology Short Answer Questions Report

Summary

This essay is on short description of the following terms atoms, molecular structure, ionic bonding, periodic table, pH, acids, oxidation, antioxidants in food, alkali cleaning agents, salts used in food, plant cells, photosynthesis, micro-organisms in the environment, bacterial morphology, comparative sizes of micro-organisms, factors affecting the growth of bacteria, bacterial spores, biological role of enzymes, catalase, and enzymic browning.

Introduction

This essay will write short notes on various topics in chemistry as well as in microbiology. Some of the terms in chemistry include atom, molecular structure, periodic table, pH, oxidation, ionic bonding among others. Some of the terms in microbiology

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3 Pages

Chemistry Report Examples

Part 1

1.
1. Eye piece 5.Arm
2. Objective lens 6.Coarse adjustment knob
3. Stage 7.fine adjustment
4. Base
2. What is the procedure (step by step) which you followed to do gram staining? (20 points)
1. Obtain a tissue sample for the gram stain.
2. Two or three drops of the sample were placed on the glass slide.
3. Use the electric slide warmer, heat the smear. Alternatively, this can be done by quickly passing it over a flame. Although should be very quick to avoid distortion.
4. Add crystal violet to the smear.
5. Rinse off the violet crystal

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3 Pages

Chemistry Report Example

Component One

The Data Quality Objectives (DQO Process) is a planning process that has been developed by the United States Environmental Protection Agency. This particular planning process is used when environmental information or data is used to make a choice between two specific alternatives or to make a derivation of contamination estimate. The process is also used in the development of acceptance and performance criteria that find use in the clarification of study objectives, defining of appropriate data type and the specification of potential errors of decisions that are then used as the basis for the establishment of the quantity and

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Time Management

4 Pages

Case Study On Microbiology Common Features And Differences In The Roles Of Lactobacillus Casei

Abstract

In this essay, it is done a description of the Bacteria species Lactobacillus casei and Clostridium botulinum about what regards their common features and similarities about their roles in the ecological niches they are found in.
They have similar pH levels to be able to grow; they both are found in various ecological niches and also have therapeutic uses. In opposition to such, as for the characteristics in terms of oxygen levels of their environments, Clostridium botulinum is more demanding, requiring always low-oxygen levels to be present in the bacteria form and to be able to grow, while Lactobacillus

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2 Pages

Free Argumentative Essay On Should Antibiotics Be Banned From Animal Feed

Antibiotics usage in farm animals is rather heavy and extensive and has been a characteristic practice of farmers in Europe and North America for some time. Based on the health hazards that usage of antibiotics on livestock pose to human health, they should completely be banned from animal feed. A good number of pork, beef, and poultry eaten by humans have small levels of antibiotics. This is an outcome of efforts to improve quality, as well as quantity of farms output. The United States utilizes more than 29 million pounds of antibiotics in farm animals per annum, which accounts

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5 Pages

Case Study On Physical And Chemical Control Of Growth And Viability

Helicobacter pylori, which was formerly known as Campylobacter pyloridis, is a microaerophilic, Gram-negative bacterium present in the stomach. In 1982, Robin Warren and Barry Marshall discovered that it was found in persons who were suffering from chronic gastric ulcers and gastritis, diseases that were not formerly thought to have been caused by microbes. It is also associated with the development of duodenal ulcers and stomach cancer. Nevertheless, more than 80 percent of persons infected with the bacterium show no symptoms, and it has been contended that it may have a crucial role in the natural ecology of the stomach (

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2 Pages

Simple Thesis Proposal Sample

An evaluation and the quantification of the antimicrobial effects of macrolide, antimalarial drugs, tetracycline and anti parasitic drugs on various morphological forms of Borrelia Burgdorferi bacteria
Lyme disease is a bacterial disease caused by Borrelia burgdorferi bacterium. The disease is spread through bites from ticks. Lyme disease affects the skin, the nervous system, the heart and the joints. The disease develops in phases. The first phase begins with development of a Round red rash at the site of tick bite. The second phase is characterized by an expansion of the round red ring to other parts of the body.

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2 Pages

Microbiology Structural Similarities, Differences And Phylogeny Of Lactobacillus Case Study Example

Abstract

In this essay, a description is done of the Bacteria species Lactobacillus casei and Clostridium botulinum. Their common ground and similarities are presented, being a part of the Low G+C Bacteria, or Firmicutes: Gram-Positive, rod-shaped and fermenters. Additionally, it is also discussed what are their contrasting traits, that keep them distinguished, together with what are the factors used for the various strains’ differentiation, within each species.
Keywords: Lactobacillus casei, Clostridium botulinum, characteristics, similarities, differences, phenotype, structure, phylogenetics.

Low G+C Bacteria – Firmicutes
The Bacteria regarded for this essay are part of the Low G+C Bacteria, or Firmicutes.

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2 Pages

Report On The Metabolism Of Paba Para-Aminobenzoic Acid

The Metabolism of (PABA) Para-Amino benzoic Acid

Introduction
PABA or Para amino benzoic acid is a non proteinous amino acid that occurs naturally. The molecular formula of para- amino benzoic acid is C7H7 NO2; the structure of PABA consists of benzene rings substituted with a carboxyl and an amino group. PABA is a white crystalline molecule that is only sparingly soluble in water. PABA is a very essential nutrient for bacteria PABA functions as an intermediate in the synthesis of folic acid in bacteria
The deficiency of PABA does not cause any deficiency diseases in man. Some bacteria in the intestinal tract can synthesise PABA from

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5 Pages

Case Study On Intro To Microbiology – Pathogenic & Non-Pathogenic Microorganism

Abstract

In this essay, a description of a non-pathogenic and of a pathogenic microorganism is made. As microbiology aims the study of the microscopic organism that inhabit the ecosystems, the understanding of what are the species present in the biosphere, what are the condition in which they live, what are their metabolic processes and products, and of how can these influence, positively and/or negatively other living forms, including humans, it is essential to study them to know how their caused illnesses be prevented, treated and, furthermore, how can possibly help the health welfare. As examples, the Lactobacillus casei and Clostridium

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2 Pages

Effect Of Temperature On Amylase Activity Report Examples

Abstract

Amylase from Bacillus Subtilis and Aspergillus oryzae were studied as representative candidates for bacterial and fungal enzymes, respectively. The activities of these two enzymes were studies comparatively over a period of 10 minutes and at temperatures of 0, 40, 60 and 95°C. The experiment was conducted to find the most effective temperatures for bacterial amylase and fungal amylase to catalyze starch hydrolysis. The data suggest that fungal enzyme was relatively more active, particularly in the first 6 minutes, than the bacterial counterpart at 0°C.
On the other hand, the fungal enzyme activity deteriorated more rapidly than that

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6 Pages