Bacteria Essay

coli bacteria with a +pGlo gene to make the bacteria antibiotic resistance, have the ability to glow, and the switch to turn on and off the glowing gene. The independent gene for this lab was the addition of the plasmid into the E. coli bacteria, with the dependent variable being the expression of the gene insertion by the ability of the bacteria to grow and glow. There were two control groups in this lab, the first plate (LB…

gathering ingredients for dinner, it is highly unlikely that superbugs are on the shopping list, but many Americans are bringing them home unknowingly. Superbugs, or antibiotic resistant bacteria, are becoming a major public health threat in the United States. Certain varieties of these antibiotic resistant bacteria can be found in our commercialized meat products, such as chicken, beef, and pork, and even on our Bugs, fried in Thailand by Paul Esson fresh fruits and vegetables. The superbugs…

Gram-positive cocci are an interesting group of bacteria to study. Some common species include Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis, Streptococcus pyogenes, and Sarcina lutea. Gram-positive cocci have a gram positive cell wall, cocci morphology and many different styles of grouping. Some species have begun to exhibit a resistance to fluoroquinolone by the use of altering the drug binding site and the use of a membrane pump (Hooper 2002). Thanks to the…

took a few weeks to grow enough mold to test his findings, and discovered Penicillium notatum did in fact inhibit the growth of some bacteria. However, he did not…

gram-negative bacteria and form a distinct bacterial lineage of extremophiles; the Firmicutes phylum has a diversity of microbes associated with the human gastrointestinal tract, especially with fatty acids absorption which makes it connected with obesity when a change in the microbiome occurs, and dominate the bowel environment being linked to human bowel inflammatory diseases. Are also found in at least 60 mammalian species. The Proteobacteria, also known as purple nonsulfur bacteria , is…

foursome. The harmful bacteria are easily grown and seem to cause no disease. Hives are sleek, convex, and pink to red color. The cells dirt gram positive, although the cell package is uncommon and similar to the cell surfaces of gram-negative harmful…

stability in tremendously high temperatures) (Archaeal, 2011). A Bacterial Virus is an infectious agent that is incapable of replication outside of a living host. Once it invades a host (a bacteria 's body), it acts as a parasite. It uses the bacteria 's metabolism to develop and grow. Meanwhile, it destroys the bacteria by disintegrating the cell 's membrane. This process is known as bacteriophage (bacteriophage, 2003). When a bacterial virus enters an insect, animal, or human, it can…

of settings; from clinical diagnostics to environmental monitoring (1). Species of bacteria can differ fundamentally in aspects ranging from morphology to metabolism. Exploiting these differences can allow for identification of unknown organisms. Gross morphological characterizations are crude, and better replaced by more accurate and specific tests. At a fundamental level, tests such as the Gram stain divide bacteria in to two broad categories based on the characteristics of their cell wall…

to kill bacteria. They are typically taken internally and they act differently depending on the organism. The second type is Antiseptics, these are microbial agents used on the skin and they are harmful to microbes. The third type is Disinfectants and these types of antimicrobial agents are used on inanimate objects like counter tops and they also kill and inactivate microbes. In order to test how well antibiotics, antiseptics, and disinfectants work on two different types of bacteria (S.…

Transformation of pGlO plasmid to an E.coli bacteria cell We pipetted 250 ul of CaCl2 transformation solution to into two separate tubes. Next, we used a sterile loop to transfer two to four larger bacteria colonies from an E.coli plate into each of the two tubes. The bacteria was observed under UV light to make initial observations. We pipetted 10 ul of pGLO plasmid (0.08 ug/ul) into one of the tubes. Both tubes were incubated on ice for ten minutes. After ten minutes of incubation, the tubes…