Bacteria

Bacteria can help and harm humans in the world tod

ay.The agricultural industry depends on the existence of bacteria that can transform the nitrogen gas from the atmosphere into ammonia in the soil that plants can use in a process called nitrogen fixation.Bacteria are good for recycling because they feed on dying material and convert it back into basic substances.Without decomposition the food chain would […]

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Two-component signalling pathways in bacteria

Experiencing “life on the edge”, bacteria have to respond to changes in the environment in order to survive. Facing limited resources and coupled with intense competition in almost every environment, bacteria have to accommodate any potential energy sources of nitrogen, carbon while resisting toxicity to their regulatory process and metabolism. By establishing an intra and […]

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Escherichia Coli Growth Curve

Objectives:• To measure the different phases of growth of Escherichia coli through absorbance reading and viable count measurements • To plot the growth curve of Escherichia coliIn the experiment, the different growth phases were observed through the analysis of the absorbance of broth with inoculated organism (E. coli). There was no viable cell counting done […]

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Bacteria – 795 words – College Essay

Bacteria are the most numerous type of microorganism found in the rhizosphere of the soil. They produce secondary metabolites which are capable of producing antibiotic which eventually inhibit or kill bacteria. The rhizosphere region of the soil is a highly favorable habitat for the proliferation, activity and metabolism of numerous microorganisms. The magnitude of this […]

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Lab Report: Effects of Lysozyme

This report discusses an experiment that was done to demonstrate the effects of lysozyme on populations of Gram positive and Gram negative bacteria. Bacteria have a cell wall composed of peptidoglycan that gives the wall its strength. Gram negative bacteria have and extra component of lipopolysaccharide (LPS), that is stabilized with magnesium ions, to their […]

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Beneficial bacteria in the environment and their uses

In today’s world, the environment and its related issues are steadily gaining a lot of importance. Some bacteria are helpful and are used to obtain balance in the environment. It has been seen that helpful bacteria are useful in dissolving organic sludge from water, breaking down the growth of algae, reducing the various noxious odours […]

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Bacillus Cereus

Bacillus cereus is a rod-shaped gram- positive bacillus that can be found in food, dust, dirt and sometimes soil. It is an aerobe and a facultative anaerobe that can form spores, which if activated at any point can begin to germinate and produce toxins. These spores that form from B. cereus are be resistant to […]

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Streptococcal Pneumonia

The bacteria, Streptococcus pneumonia, are often spread through the contamination of droplets that may be passed on from one person to the other. The bacteria are located in the nasopharynx before being spread to the other parts of the body, causing several other diseases. As the bacterium infects the other parts of the body, these […]

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Effects of Penicillin and Temperature on the Growth of Escherichia Coli

Bacteria growth is known to be either augmented or impeded by a number of various factors; in this experiment, our group tested how E. coli is affected by penicillin as well as how different temperatures can affect bacteria growth. We know that antibiotics are generally specialized against certain types of bacteria—more specifically, some are most […]

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Eschericia coli

Possibly one of the most common bacteria that can make people sick is Eschericia coli. The bacteria can cause several illnesses, chief of which is diarrhea. According to a recent article published in the Washington Post, there were several reports that spinach vegetables were recalled due to E. coli outbreak. Before that, there was also […]

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Gram Negative Unknown Lab Report

The main idea of this experiment was to correctly identify the unknown bacteria. Identification of unknown bacteria yields multiple benefits in many different areas in the research of microorganisms. In this experiment I performed many different test dealing with things such as the presence of enzymes, fermentation abilities and different chemical reactions. Observations made from […]

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Basella Rubra Fruit Extract

According to H. J. Croxx, when microscopists first began to use stains in the sixties and seventies, the demand for dyes for this purpose was naturally too small to justify a special source of supply. They therefore had to make use of textile dyes, which were then very crude and were not constant in their […]

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Serial Dilutions

Many applications require the determination of microbial numbers. Those applications can be either clinical or in a research setting. Clinical applications include determination of antibiotic efficacy and as well as therapy. Research applications include determination of the effectiveness of antimicrobial chemicals, radiation, etc. The viable count is most common or standard method used to quantitate […]

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Old age and Peptic ulcer: the role of Helicobacter pylori

Human body systems weaken as it age which open the possibility for infections caused by bacteria and other microorganisms. Predominantly elder people are more susceptible to diseases and complications. While some people have higher resistance than others, it is still undeniable that the immunity of people, especially those who aged 50 and above, are weaker […]

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Ampalaya – College Essay

Ampalaya, also called bitter melon, is best known for its traditional use in treating diabetes. This plant also is used to treat psoriasis, intestinal worms, infections and other conditions. That’s because, in addition to its blood-sugar lowering action the plant has antibacterial properties, says “Ampalaya,” author Frank Murray. Always check with a doctor before trying […]

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Bacterial Vaginosis

The disease I’ve chosen to write my research paper on is Bacterial Vaginosis. Bacterial Vaginosis is vaginal condition that can produce vaginal discharge and results from an overgrowth of normal bacteria in the vagina. In the past, the condition was called Gardnerella vaginitis, after the bacteria that was believed to have caused the condition. However, […]

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Observing Protists Through Hay Infusion Preparation

Protists are known to be the very first eukaryotic organisms on earth. The Kingdom Protista was first classified by Haeckel in the year 1866. Now, there are many known species of protists. After learning about protists in class, the group decided to observe the different species of protists found in pond water. The group prepared […]

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Campylobacteriosis

Campylobacteriosis is an infectious disease caused by bacteria of the genus Campylobacter. Most people who become ill with campylobacterosis get diarrhea, cramping, abdominal pain, and a fewer within two to five days after days after exposure to the organism. The diarrhea may be bloody and can also be accompanied by nausea and vomiting. The illness […]

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Lab 3 Questions

* Why are the chloroplasts traveling along the outer perimeter of the Elodea cell? The chloroplast are traveling along the outer perimeter to help move the vital nutrients thought the cells and convert them to substances used in the cell of the elodea cell. * What is the typical size difference between animal cells and […]

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Cycles of Matter

1. Explain the role of decomposing bacteria in the carbon and nitrogen cycles. In the carbon cycle, decomposing bacteria release carbon from the decaying bodies or waste into the atmosphere. Without them, it won’t be able for any organism to access the carbon stored in dead bodies. In the nitrogen cycle, decomposing bacteria breaks down […]

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Food Bourne Illness Short Answer Questions

What is the infectious agent (pathogen) that causes this infectious disease? For example, the name of the bacteria, virus, or parasite. Salmonella is a bacterium; there are many different kinds of salmonella causing bacteria although the most common types in the United States are Typhimurium and Enteritidis. How is this infectious agent transmitted through food […]

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Causes and Pathology of Mucositis

Defention: One of the most debilitating side effects of radiotherapy and chemotherapy treatment. It is characterized by both inflammation and cell loss in the epithelial barrier. Mucositis is a very complex condition: it develops as a series of dynamic interactions that begin in the epithelium but in a later stage involves other tissue mucosal components […]

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