Bacteria Essay

and light all affect the rate in which bacteria grow. The majority of bacteria flourish when the pH level is near neutral; the growth rate is highly affected if the pH is off by just a little. If too acidic, the amount of time it takes the bacteria to adjust to a new environment (lag time) is increased which slows the growth, the activity of enzymes is affected and the shape of molecules. Varying amounts of moisture are required for different types of bacteria. A low level water supply affects…

specimen thrive in aqueous environments, therefore they are translucent and when mounted on a microscope the light passes through them making it impossible to see the specimen. Equally as important as this is that the viewer is aware of what type pf bacteria is being utilized. Both of these criteria in a lab are met with the use of a staining procedure which allows for greater contrast between the mostly translucent cells and light used by the microscope. Staining is a critical step when…

Introduction Background This experiment pertained to identifying an unknown bacterium. This bacterium was retrieved from a member of our group’s hand. Bacteria are prokaryotic, but like all other living organism there are many genus and species. Through experimentation these unknowns can be found can be brought to light. Bacteria can be classified either gram-positive or gram-negative. These groups differ by the composition of their cell walls. In particular, the difference in the composition…

Antibiotics and disinfectants are both used to kill and prevent the growth of bacteria. Antibiotics come from the fungi family and are commonly used to kill bacteria. While each antibiotic works differently for particular bacterias, all of them either target physiological pathways to enable the disruption and killing of bacteria or it inhibits of cell growth ((of prokaryotic cells)). The physiological pathways are genetic and biochemical (act in converting to mediate bacterial response to an…

everywhere. Fortunately, most pose no risks to people. And those that do cause disease usually can be killed with antibiotic drugs. Sometimes, however, harmful bacteria evolve ways to “laugh at” antibiotics — survive as if the poisons were not even there. This so-called drug resistance make infections hard, if not impossible, to treat. How bacteria learn to resist killer drugs normally is invisible. But scientists have just unveiled a new tool that lets them watch it happen, right before their…

Blog Adult Vaccinations that are a Must for Immigrants Vaccinations are considered to be one of the most effective medical ways of helping individuals to strengthen their body immunity. It is best to take medical assistance and know about the vaccinations that your infant needs. However, vaccinations are available not just for children but for adults as well. Adult vaccinations are needed during international visits for immigrants. The growing importance for these vaccinations is to make your…

direct interaction. It can be defined as the direct transfer of DNA form one bacterial cell to another bacterial cell. The donor is F+ and the recipient is F-. they are attached through a conjugal bridge. The pilus then attractions the two separate bacteria together. Now, the donor bacterium transfers genetic material to the recipient bacterium. During the process of conjugation, one of the bacterium aids as the donor of the genetic material. The other serves as the recipient. The donor…

According to Menezes et al. (2013), yeasts have the important potential roles for the meliponine colonies as similar as the bacterial roles. For example, some bacteria undergo the metabolic conversion process by secreting enzymes that breakdown substances from stored food into a simple form for conservation (Gilliam, 1990). The participation of bacteria and yeasts in a lactic acid fermentation has often been postulated for the conversion of pollen into bee bread (Haydak, 1958). Manezes et al.…

but when I checked Gale Virtual Reference Library(GALE) I found all of the articles I needed in two searches. I found my first article on the GALE database. I searched “topsoil and bacteria and diseases.” An article titled “Anthrax” caught my attention because it was a disease I have heard of…

have diarrhoea, vomiting, an upset stomach, fever, or cramps. They often think they have the flu, but the real problem is food borne illness caused by bacteria in the food they ate a few hours or several days ago. Bacteria is the greatest threat to food safety. Of all the micro-organisms, bacteria are the greatest threat to food safety. Bacteria…