year, are losing their ability to thwart disease. This means that, if the present trend continues, humanity will once again find itself facing the kinds of apocalyptic epidemics that have been man’s curse for all but the last century of history. Bacteria of many ilk, from the relatively innocuous streptococci that give most people a sore throat and a bit of fever, through the often lethal and fast-propagating tuberculosis and e.choli, are becoming resistant to antibiotic treatment. And while many
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Did this article catch my interest, yes, because it’s talking about how bigger areas of where people live and economies growth of industries and pollution rates are more affected by the bacteria and the difference in the cell biology growth process. Also the difference between the growth processes in one land verses another. This article did hold my interest throughout reading it to the end. I had a hard time at first understanding what they were doing and how. I don’t feel like they explained how
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or preparation, losing their initial characteristics, thus becoming unfit for consumption and even dangerous for human health and life. Food poisoning is a condition caused by food or drink contaminated with pathogenic microorganisms such as bacteria, viruses or parasites. In summer, due to high temperatures, such microorganisms multiply very rapidly perishable foods. The increased risk of contamination is mainly caused by improper hygiene conditions, cooking, improper food storage and preservation
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tests. Each test done will help to eliminate other bacteria. Once a scientist knows the species, the right steps can be taken to help out people if they get contaminated with the bacteria. When I received my unknown bacteria, I started of doing a Gram Stain. This test revealed to me that I had a Gram negative bacilli in a random arrangement. This step is very important to figure out what type of family the bacteria belongs to. Gram negative bacteria have a thin peptidoglycan layer and a waxy outer
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Hypothesis The tested hypothesis for this lab stated that the disease that infected Pond 22 and is now dispersing to Pond 23 has a bacterial nature. Methods Many different scientific procedures were performed in order to either retain or reject the hypothesis for this experiment. First, the water samples obtained from Pond 22 (Disease-struck) and Pond 16 (Healthy) were serially diluted. As a result of the serial dilution process, the two pure samples were brought to a concentration of 10-4. Next
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1. The sudden unexpected occurrence of a disease in a given population: a. Outbreak b. Zoonotic c. Endemic d. Sporadic 2. A causative agent of peptic ulcer a. Escherichia coli b. Bordetella pertusis c. Shigella dysenteriae d. Helicobacter pylori 3. The “four o’clock habit” promoted by the Department of health is designed to prevent the spread of: a. Dengue fever b. Tuberculosis c. Malnutrition d.malaria 4. The first drug available for HIV: a. ZDU b. RMP c. TMP
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contaminated by bacteria, viruses or protozoa are typhoid and cholera, gastroenteritis, paratyphoid fever, and infectious hepatitis. These kinds of diseases are caused by microbiological parameter. One of the microbiological parameter is the coliform bacteria. Coliforms may be associated with the sources of pathogens contaminating water. It is a broad class of bacteria found in our environment, including the faeces of man and other warm-blooded animals. The presence of coliform bacteria in drinking
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Generalized and Specialized Transduction There are several mechanisms in which bacteria transfer genes with one another. Vertical gene transfer is the transfer of genetic material during cell division. Horizontal gene transfer, on the other hand, is the transfer of genetic material between different species of bacteria; three types are found. Conjugation is the transfer of DNA by direct contact with the cell. Transformation is the uptake of genetic material from the surrounding. Transduction is
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chronic, and lasting a month or more, or it can be mild or aseptic. Acute bacterial meningitis is the most common form of meningitis.Meningitis is a disease that can be passed from person to person (contagious). It is caused most often by viruses or bacteria that infect the tissues, meninges and sometimes the fluid (cerebral spinal fluid, or CSF) that surround the brain and spinal cord. Organisms that cause meningitis can be passed from one person to another or passed from rodents and insects to
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| |Contains chlorophyll, a green pigment that traps energy from sunlight and gives plants their green color |Chloropasts | |Digests excess or worn-out cell parts, food particles and invading viruses or bacteria |Lysosome | |Small bumps located on portions of the endoplasmic reticulum |Ribosome | |Provides temporary storage
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