belongs to the domain bacteria. The species name‚ Bordetella pertussis‚
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What are probiotics? Probiotics are bacteria that help maintain the natural balance of organisms (microflora) in the intestines. An estimated 100 trillion microorganisms representing more than 500 different species inhabit every normal‚ healthy bowel. These microorganisms generally don’t make us sick; most are helpful. Gut-dwelling bacteria keep pathogens in check‚ aid digestion and nutrient absorption‚ and contribute to immune function. Probiotic therapies suggest that certain probiotics may help
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that I have been learned so far in the microbiology laboratory class for the identification of an unknown bacterium. The purpose of this lab was to identify two unknown bacteria cultures using various differential tests. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways‚ each was used in a way to help
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classification of bacteria is important to make easier manipulation on the bacteria for various purposes such as for medical‚ research‚ developmental‚ and biotechnicalfieldsThe cell wall is the basis for classification of bacteria according to the Gram stain. Accordingto the chemical make up of bacterial cell wall‚ a staining procedure‚ Gram stain‚ helps usclassify bacteria into two subgroups‚ The cell wall can stain either positive or negative‚depending on its chemistry. If the bacteria stains positive
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University Biology 1510 Professor A. Hirons March 28‚ 2011 Abstract Antibiotic resistance is when microorganisms‚ such as bacteria‚ are able to survive an exposure to antibiotics and these bacteria are now resistant to the effects of these antibiotics. Antibiotic resistance in bacteria has been an issue since antibiotics were discovered. The fact that bacteria can become resistant to our medical treatments such as antibiotics is a natural evolutionary process‚ but there are certain human
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was investigated; gonorrhea passes from one person to another mainly through unprotected sexual activity. The causative agent for the disease‚ Neisseria gonorrhoeae‚ is a gram-negative coffee bean-shaped diplococci bacteria occurring in the form of two joined cells. The manner the bacteria initiate the disease is that Neisseria gonorrhoeae attaches to the epithelial cells which are
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industry bacteria and yeast are transformed with human genes of interest in order to produce therapeutics for human disorders. An example of pharmaceutical industries use of transformation is seen in the development of insulin‚ which is used to treat some forms of diabetes mellitus (2). In nature‚ many strands of bacteria genetically exchange genetic information during a process known as conjugation‚ and the new information is passed on subsequent generations. The advantage of using bacteria relates
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as well as a Gram(-) from the species that were given and the experiment proceeded as follows. METHODS The two streak plates made from the mixture of unknown bacteria showed two different colony morphologies. Colonies of Bacteria A were translucent in color‚ circular in form‚ with entire margins and a smooth surface. Colonies of Bacteria B were cream colored‚ irregular in form‚ with undulate margins and an umbonate surface. Two different morphologies allowed Gram stains to be performed on each of
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food supply system in America may be one of the safest in the world‚ but there are definitely some holes in the safety net that Americans should be aware of before they conclude that everything in the food supply is safe. Many different types of bacteria can now be found in and on the food we buy‚ and it is now part of the consumer’s responsibility to take precautions in preparing and storing food to
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Title Gene expression with E.coli bacteria through means of transformation with plasmid DNA Abstract Science has discovered that with gene expression and genetic engineering‚ DNA and organisms can be manipulated like never before. This has become an extraordinary discovery because it has lead us to countless medicinal products and cures for diseases and continues to serve as a great asset as research continues. This lab consisted of introducing a plasmid
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