Bacteria Essay

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…

electrophoresis. The relevance of this study is important to field of biology because bacterial infections could be treated with bacteriophages. Bacteriophages can be a solution to antibiotic resistance because phages are viruses that are able to infect bacteria. This can tremendously help and set a new pathway in biology. The results were that phage was isolated. The conclusion is that gordonia host didn’t produce results, which…

chemical reactions and are considered a major factor in an organism as these reaction rates are required to be shortened in order to support life. Catalase is one of the most important enzymes in living organisms, such as animals, plants and aerobic bacteria due to its capability of decomposing hydrogen peroxide, an extremely dangerous and harmful oxidizing agent to water and molecular oxygen. Conversion of hydrogen peroxide: 2H2O2…

radiation, and majority of chemicals. Mycobacterium are extremely resistant due to their waxy cell wall. This cell wall blocks many things from entering the bacteria, making it hard to destroy. Gram negative bacteria are more susceptible to heat, because they do not have a thick peptidogylcan layer like gram positive bacteria does. Gram negative bacteria has a outer membrane of LPS, that is affected by heat easier. The five…

commencement of the experiment, several hypotheses were made in regards to the efficacy of different household antibacterial products on two species of bacteria. The first hypothesis predicted that the most afflicted species of bacteria would be Staphylococcus aureus; the second suggested that products A and C would be more effective at killing both species of bacteria than product B; whilst the third hypothesis proposed that product A would be most active against S.aureus. The assumption that…

Antibiotic resistant bacteria are bacteria that are resistant to the antibiotics that at one time were able to kill them. It is a growing issue in today’s society especially since it is unknown how these microbes are able to mutate around a treatment that was once lethal to them. The consensus in the healthcare community is that these microbes will be an increasing threat until a solution is found. There is still discussion and controversy over the best method of identification and infection…

also able to eliminate all of the streptococcus bacteria because my bacteria was in clusters and not in a chain arrangement. Gram staining also helped me in eliminating the bacilli because my interpretation of the observation was that my unknown bacteria was spherical in nature and not a rod. This quickly led me to Staphylococcus epidermidis and Enterococcus avium. The Lanagram experiment helped to solidify the road I was on by confirming that my bacteria was gram positive due to not changing to…

As we all know, antibiotics eliminate bacteria, and by doing that, the infection is almost cured. This operation is not as simple as it seems, it requires high levels of specificity, selectivity, and accuracy. The outcome of taking antibiotics is well known, but how do antibiotics actually work? What are the specifics of the fierce interactions between bacteria and antibiotics? These questions can only be answered by following the process of bacteria eradication by antibiotics in the human body…

flagellum, there are similar structures that could have led the the evolution to the bacterial flagellum. Bacteria in the bubonic plague has been found to resemble to bacterial flagellum. The bacteria is shaped like a syringe and appears to be the like bacterial flagellum without a few parts and the ability to move around. Subset proteins from the bacterial flagellum have been found in the bacteria for the bubonic plague. These aspects help support the theory of evolution more rather than…

quantitative. However, as these numbers were then categorised into 3 areas, to solely determine if the bacteria were or weren’t resistant to the disinfectants, it means that the results are also qualitative. Within this experiment 2 commonly known disinfectants (Milton and Dettol) were used at variable strengths against 2 strains of bacteria (E.coli and S.Aureus) with a purpose to see how resistant the bacteria was against the disinfectants.…