Bacteria Essay

of a body part effect the bacteria population present on the said part? What has more bacteria the inside of a person's mouth or a person's index finger? My biology class is learning how to conduct experiments, and last week for our experiments we were broken into groups and given instructions to swab any two different objects. After swabbing our two objects, we were then suppose to wipe each swab onto a divided petri dish in order to see which object had more bacteria. My group could have…

Body Bacteria Exploring the Skin’s Microbial Metropolis by Allison Maclachla, Personally I found this article very engaging yet descriptive. Especially when she explained that not all bacteria are bad for you, and then continues to state some are very helpful. For instance she touches base on Staphylococcus epidermis, and how it shields us by taking up the space that Staphylococcus aureus would otherwise conquer. It’s intriguing to now know that acne (Acne vulgaris) the most common skin…

Velocity of Bacteria and Cells Determine the Need of Antibiotics The first goal was to examine the motion of E. coli bacteria. Excel was used to analyze and record the position, velocity and acceleration of the bacteria. The second goal was to analyze and compare the cell motion of wound healing, neutrophils and E.coli bacteria using ImageJ to determine if a patient needs to take antibiotics to cure his injury based on the velocity of E. coli, neutrophils, and wound healing. Experimental…

The two types of bacteria are archaebacteria and eubacteria. What characteristics distinguish these two groups from the other kingdoms? These two groups are different from other kingdoms because all cells in these kingdoms are single-celled organisms whose organelles are not membrane bounds. They are also microscopically small. What is the average size of a bacterium? An average bacterium is about 1-2 micrometres long. How many prokaryote species have been discovered? How many are estimated to…

February 27th 2015 Bionic Antibiotics VS. Bacteria Abstract: The bacteria lab preformed in class tested the effectiveness of antibiotics against bacteria. During the lab we tested the antibiotics penicillin, streptomycin and tetracycline against the bacteria Escherichia coli and Staphylococcus epidermis in order to determine which antibiotics fought which bacteria most successfully. In order to monitor the experiment, we kept a control sample in which no bacteria was present, only an…

Humans and bacteria have a unique relationship, which has both positive and negative outcomes on human beings. In fact, the human body’s surfaces are inhabited by numerous bacteria, known as normal flora (Hornef et al., 2002). These normal flora may act as commensals or be mutualistic, which means that they are either harmless or beneficial microorganisms (Cogen et al., 2008). However, serious invasive diseases, such as meningitis and septicemia are caused by several pathogenic bacteria (Hornef…

This is because gold is very resistant to bacteria. Bacteria are microscopic single-celled organisms. Bacteria are prokaryotes, meaning the entire organism consists of a single cell with a simple internal structure. The DNA of a prokaryote is neatly packed in the nucleus. The bacterial DNA floats freely in a twisted thread-like mass called the nucleoid. Gold is unaffected by almost everything. The only materials that can affect gold are man-made. Since bacteria is a natural organism, it cannot…

modified bacteria can benefit society in many ways. “Genetically-modified foods have the potential to solve many of the world’s hunger and malnutrition problems” (Pandey, A.). This paper will show how modified bacteria is beneficial through nutrients in food, resistance towards drought and chemicals used on plants, and uses for pharmaceuticals. First, there needs to be an understanding of how genetically modified bacteria works. Genetically modified crops start off with bacteria that has…

devastating pandemics to sweep the earth since humans have populated it. It was widely thought to be caused by a bacteria called Yersinia Pestis and in recent studies and research, evidence has made a strong case for the confirmation of that bacteria as the cause of the Black Death. Graves in Europe that were tied to that time period and the Black Death showed traces of that bacteria in both southern and northern Europe (Haensch et al. 4). In the 14th century about 20-30 years before the…

Griffith finds that bacterial cells can be transformed. (Raven) There are two forms of bacteria, one that causes pneumonia and a nonvirulent that does not. The nonvirulent lacks enzymes to manufacture the coat of polysaccharide. Griffith performed a series of experiments with these types of bacteria on mice. Some mice died and some lived. In the end polysaccharide coat was necessary for virulence. If the virulent bacteria S formed in the first heat-killed then the infection doesn’t harm the…