Bacteria

As the flowchart shows, a series of tests were conducted to identify the unknown bacterium #65. Microscopic observation of the gram stain indicated a gram-positive coccus bacterium. S. epidermidis was used as the gram-positive control while E. coli was used as the gram-negative control. This observation led to the elimination of all gram negative and rod-shaped genera: Enterobacter, Citrobacter, Klebsiella, Escherichia, Pseudomonas, Serratia, Alcaligenes, Neisseria, Proteus, Salmonella, Shigella

Bacteria can be divided into two types of species, gram positive bacteria and gram negative bacteria. To determine whether a certain type of bacteria was classified tests were conducted by Hans Christian Gram; who discovered the differences within the cell walls of the bacteria. Gram positive bacteria have a thick wall which consists of the protein peptidoglycan. This is opposite to gram negative bacteria which has a thin cell wall, which fold over each other (Wells, 2017). They retain a much thinner

inhibition on different bacteria. Also, a range of concentrations of the nutrients in the bacteria will change the bacterial growth. Background information Bacteria affected 2 million people from antibiotic resistance bacteria and 23,000 die per year due to the infections. Bacteria works by entering the body in various ways, they can enter past nose, mouth or ears as they are small, they can be inhaled from the air, eaten from food as well as through cuts/ open wounds. Bacteria enters the body and

Bacteria have many properties in that some are very harmful, pathogenic, and others are extremely beneficial in many ways to humans and to all types of organisms. Some live within plants, fungi and humans. An example in the human body is Lactobacillus Johnsonii which is a bacteria that helps infants digest milk smoothly (it is found in the gut)( Anwar MA and others 2008). Every type of bacteria is classified according to features that can be studied further for differing properties and what separates

lab instructor. The purpose of this exercise is to go through a series of testing in order to identify a microorganism, how it grows, reproduces and how the bacteria can be treated and killed. The techniques involved in this study included; what type of agar to use, inoculating, proper sterilization, gram staining and how to handle bacteria in order to avoid contamination. Materials and Methods: The patient in questioned presented with symptoms of painful urination for the past 2 weeks accompanied

Gram Positive Bacteria: After picking test tube #2, I inoculated a CNA plate to isolate my Gram positive bacteria. The colistin nalidixic acid in the media inhibits the growth of Gram negative bacteria, the acid affets the outer membrane of the Gram negative so they are unable to reproduce. This test is performed to determine if the Gram positvie bacterium growing on the plate has the ability to break down sheep red bloold cells. After the CNA was incubated in a candle jar, I saw alpha hemolysis

90's have shown the bacteria Helicobacter pylori to be a primary cause for gastric cancer. This discovery revolutionized the association between microbial agents and cancers. More recently, studies involving microorganisms in the oral cavity have shown connections to cancerous growth. The inflammation caused by the bacteria P. gingivalis actually leads to changes in cell responses- including those involved in cell death and cell division. Through research, the bacteria has been found to suppress

There seems to be an ongoing battle between the evolution of bacteria and modern medicine. This has become a serious problem in hospitals as bacterial resistant infections continue to be on the rise despite the practice of standard precautions that treat all patients as if they have an infectious disease. One of the leading public health threats today is meticillin-resistant Staphylococcus aureus or MRSA. With all of the advancements in medicine, it is hard to believe that we do not have the ability

is one not between nations or tribes, humans and animals, but the one between bacteria and viruses. Bacterial phages have been attacking bacteria for millions of years. This process happens when a phage (virus) attaches onto the bacteria and inserts its DNA to take over the cell and use it as a factory to produce more viruses. Nearly 40 percent of all bacteria die every single day because of this, but sometimes a bacteria will endure the attack and are able to use their most effective attack, CRISPER

Bacteria plays an important role in our bodies and in the environment. In the human body, bacteria helps us remain healthy by fighting off infections, aiding in digestion, reinforcing intestinal barrier effects and enhancing intestinal cell health and growth. Not only is bacteria important for our health, but they are also important for the Earth’s environment. In these environments, bacteria plays a pivotal role in helping to keep organisms healthy and to help maintain the balance and control that