Kenny Vo Microbiology Dr. Arora 10 December 2012 Flesh Eating Bacteria Necrotizing Fasciitis is a rare bacterial disease that causes the rapid decay of the fascia. The human body is said to be compose of approximately a hundred trillion cells‚ connective tissue contributes to about forty five percent of the total cell weight. It was nicknamed the flesh eating bacteria because the victims injuries would have a rotting appearance. What are the pathogens that cause this disease? Necrotizing
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species of bacteria look similar under the microscope and also have the same staining results (ex. Gram stain). To be able to differentiate between the different species‚ one can look at the metabolic differences (fermentation)‚ as well as the environmental condition differences (temperature‚ pH‚ oxygen requirements). Being able to manipulate these conditions in a controlled environment can help to correctly identify the exact bacteria. Different media can be used to culture and identify bacteria. Some
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MBK – Lab Report Name: _Bri White_________ Section: ___________________ Observing Bacteria and Blood Questions: A. List the following parts of the microscope and describe the function of each A- Eyepiece: Viewing and identifying objects within the viewing field B- Main Tube: Connects eyepiece lenses to objective lenses C- Nosepiece: Holds objective lens and rotates them D- Objective Lens: Provides different focal lengths E- Stage: Holds the specimen or slide F- Diaphragm:
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· Taxonomy ○ Science of classification ○ Provides an orderly basis for the naming of organisms and for placing organisms into a category (taxon) ○ Makes use of and makes sense of the fundamental concepts of unity and diversity among living things ○ Basic principle is that members of higher-levels groups share fewer characteristics than those in lower-level groups * Escherichia coli - rod shape and have a Gram-negative cell wall * Even members of the same species display variations
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This article is about the microorganisms. For the genus‚ see Bacterium (genus). For other uses‚ see Bacteria (disambiguation). Bacteria Temporal range: Archean or earlier – Recent Scanning electron micrograph of Escherichia coli bacilli Scientific classification Domain: Bacteria Phyla[1] gram positive/no outer membrane Actinobacteria (high-G+C) Firmicutes (low-G+C) Tenericutes (no wall) gram negative/outer membrane present Aquificae Deinococcus-Thermus Fibrobacteres–Chlorobi/Bacteroidetes
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Bacteria and Fungi are both very diverse groups of organisms and have numerous characteristics which set them apart from other living creatures. The domain bacteria possess traits which differentiate themselves from other organisms for example bacteria have prokaryotic cells‚ which means that their cells lack a nucleus‚ instead‚ they contain a nucleoid which contains a single circular chromosome. Additionally‚ bacteria do not have membrane-bound organelles‚ but most do have a cell wall made of peptidoglycan
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Abstract: Bacteria consists of a large domain of prokaryotic microorganism in which can fight of antibiotics allowing the bacteria to become antibiotic resistant. In this lab report‚ we discover the most effective disinfectant that would work best in killing the harmful bacterial strain‚ Bacillus subtilis. KB testing or disc diffusion antibiotic sensitivity testing is measured through the diameter in millimeters to find how resistant the antibiotic to the bacteria. The hypothesis of Windex fell correctly
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some people see bacteria as something that is harmful and that causes nothing but illness and infections. Bacteria can actually be helpful as well. It can provide vitamins to your body‚ help digestion‚ destroy bad organisms‚ help make medicines and also help out with the environment. In this research paper‚ it will describe two bacteria that are helpful and sometimes harmful to humans and the environment‚ which are E. coli and Lactobacillus Acidophilus. E. coli E. coli is the bacteria that live in
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blue onto the smear for 30 second‚ rinsed with water‚ blotted dry and observed the slide using oil immersion. Gram Stain For comparison purpose‚ I used two bacteria for this experiment. They are E. coli‚ a gram negative bacteria and Staphylococcus‚ a gram positive bacteria. I prepared a heat fixed smear of both bacteria. First‚ I used crystal violet as my primary stain‚ put few drops of it on the smear and let it sit for 30 seconds.
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a universal method of identifying bacteria allows for all scientists from any part of the world to identify the same species in an identical manner allowing for a precise of classification. Bacteria are distributed throughout the world in almost every conceivable habit. Bacteria are unicellular microorganisms‚ with variable shapes and nutritional needs. They lack a distinct nucleus and occur singly or in chains or clusters and form distinct colonies. Bacteria are classified on the basis of many
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