Bacteria

bacterial cells. It was only a few years later that Gram produced a staining procedure that he divided into two groups. The two groups divided almost all bacteria into what he called Gram positive (purple) and Gram negative (pink). The Gram’s staining procedure is still used today and is the method that forms the basis for identifying bacteria. In order to perform this procedure, you will need a Bunsen Burner or a Tirrill burner, alcohol- cleaned microscope slide, and water. You will also need The

Introduction Antibiotics are medications that kill bacteria which could also make us sick and eventual patient died from the virus if not treated quicker. Antibiotics help prevent bacteria from cell duplication. People are dying worldwide just from virus outbreak while they also seeking for a treatment of the diagnosis from bronchitis and other infectious diseases. Doctors around the globe have discovered that some of the organisms “waging warfare” against humans resistant to antibiotics these patients

sensing (QS) is a process of cell-cell communication, which controls the expression of virulence factors by pathogenic bacteria. There is evidence to suggest that the inhibition of QS in bacteria would reduce or inhibit virulence factors being produced and could also prevent biofilm formation. This review focuses on quorum sensing mechanism and the inhibition of QS in gram-negative bacteria. QS inhibition has been explored as a novel anti-pathogenic therapy to control bacterial infections with promising

Bacteria is an organism that can be a nuisance to human beings as well as a necessity. Among biologists and scientists alike, pathogens have been the number one focus, determining the optimal growth conditions that certain bacterial require in order to replicate efficiently. It should be noted that previously, bacterial cells were hard to examine and analyze however, evolutionary advancements in the biological field including the improvement in microscopes, allowed biologists to envelop a better

remove existing biofilms of dental plaque? Intro Dental plaque, the stuff that is scraped off one’s teeth in a dental cleaning, is made up of a community of bacteria living together. The bacteria reproduce and produce other substances that combine to form a biofilm, or a layer of living bacteria, dead bacteria, and other components the bacteria produce over a surface, in this case dental plaque on teeth. The University of British Columbia’s Department of Oral Biological and Medical Sciences performed

There are many types of this bacteria including salmonella Typhimurium and Enteritidis. Salmonella is most common in young children and elderly who have impaired immune systems meaning they are more likely to contract infections. Salmonella is one of the most reported causes of food poisoning in the UK. Types: All types of salmonella come from the genus Salmonella, the bacteria then gets divided up into categories. The majority of the components in each bacteria are about 95% identical for example

the increase of carbapenem-resistant Enterobacteriaceae also known as CREs which are a class of antibiotic-resistant bacteria. CREs have been described as “a risk as serious as terrorism”(McKenna, 2013, p.394). CREs can cause bladder, lung, and blood infections that can develop into life-threatening septic shock. Unfortunately, it kills half of the people who contract it. This bacteria is resistant even to carbapenems, which are considered drugs of last resort because of the serious health risks in

The use of broad-spectrum antibiotics has led to an increase in the number of resistant bacteria strains because they can be used for multiple types of bacteria. As a result it has allowed multiple types of bacteria to mutate and become resistant which makes it difficult to administer care to the patient in need (872). The preference is for new antibiotics to be created for type specific strains of bacteria coupled with the use of influenza vaccines and pneumococcal conjugates (p. 871-873). In

Biol 231L Sec.3 November 11, 2014 Identifying Unknown Bacteria: Streptococcus agalactiae Introduction: This experiment was conducted to find the genus and species of an unknown bacteria prescribed by the lab teacher, which was unknown bacteria GA3 in my case. Identification of unknown bacteria techniques are used on an every day basis to figure out what type of bacteria it is and to find the best method of how to treat a patient with this bacteria (1). All five “I’s” of Microbiology were used in the

Is the concept of prokaryotes valid and useful or fundamentally flawed? Since the establishment of the basic concept of classification of organisms by Carl Linnaeus (Encyclopaedia Britannica) and Charles Darwin’s theory of evolution, various ideas and concepts have been suggested. After being repeatedly reviewed by a number of experts, some of them are accepted and this has enabled scientists to classify organisms, to recognise the connections between them despite of different physical appearance