Essay on Bacteria

Introduction Bacteria pathogens have become increasingly resistant to antibiotics. (Vuotto et al. 2014) The purpose of this experiment is to understand how bacteria are genetically modified in order to better understand the changes going on naturally in such bacteria. Genetic transformation is used in many sectors of everyday life. From agriculture to medical treatments, this biotechnology is allowing for new findings through science. Three methods of genetic transformation are projectile bombardment

can only be visualized by the aid of a compound-brightfield microscope. While we generally cannot see individual microorganisms with the naked eye, they are present in virtually every habitat known to man. Microorganisms can be prokaryotic—the bacteria or eukaryotic—the algae, protozoa or fungi. While viruses are acellular they are also studied in the scope of microbiology because they are small and because they infect cells. While most bacterial are unicellular they can also exist in colonial

that was not exposed to the pGLO plasmid that had Luria Bertani nutrient broth (LB) added, had lawn growth in all Petri dishes. This bacteria did not glow, the phenotype for the GFP gene, as the bacteria wasn’t exposed to the pGLO plasmid containing the GFP gene. Without the gene in the bacterial genome, the E. coli would be unable to express that phenotype. The bacteria also showed extreme growth in the form of a lawn. This is because the LB broth provided E. coli with the required nutrients and allowed

Unknown bacteria determined to be Alcaligenes faecalis because of its morphological, physiological and metabolic properties. In a laboratory setting, it often becomes necessary to identify an unknown organism. In this experiment, researchers classified an unidentified bacterium based on its physical structure, colony morphology, optimal conditions and metabolic properties. A Gram stain using crystal violet, iodine, and safranin and a simple stain using methylene blue characterized the organism’s

_____________ Can brushing your teeth kill you? There are many types of bacteria that can be found in your bathroom. They might also be found on your toothbrush! I have been researching about what bacteria are lurking in my bathroom. I placed 6 petri dishes filled with agar in my bathroom. I left them there for 24 hours to collect bacteria samples. Bacillus, Coccus, and spirillum are the three main kinds of bacteria. Bacillus are rod shaped. Cocci are spherical shaped. Finally spirillum are spiral

evidence that its bacterial component plays a role in the occurrence of chronic diseases [1]. In this regard, gastrointestinal tract (GIT) (or gut) bacteria are very important [2], being the niche for many bacteria which have been extensively studied [3]. Rather than the action of single or group of gut bacteria, perturbation of the overall gut bacteria (dysbiosis) is crucial for the integrity of the GIT and extra-GIT disorders [4]. The gut bacterial composition is influenced by both intrinsic and

Virus and Bacteria Virus - A virus is a capsule of protein that contains genetic material. A virus cannot reproduce on its own; it must infect a living cell to grow. Bacteria - Bacteria are one-celled organisms that live on their own. They can multiply and reproduce by subdivision Bacteria and viruses cause many of the diseases we are familiar with and may sound synonymous; they are greatly different from each other. [pic] o They differ greatly in size. The biggest viruses are only as large

Mycobacteria are rod-shaped bacteria which require oxygen for growth. Each species has an acid-fast staining property during some stage of its growth cycle. It has thick, waxy, outer coating which can lead them to thrive in aquatic environments. For some time, scientists have known of bacteria that are similar to Mycobacterium tuberculosis, but that grow and act differently. When tuberculosis was a much more widespread problem and microbiology was much less able to tell the difference between similar

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

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

Living the Environment: Bacteria Abstract This experiment depicts the presence as well as the identification of various micro-organisms including the bacteria, fungi and algae which may be present on the surfaces that are commonly used. The use of scientific methods allows to check the presence of bacterial as well as fungal strains in this experiment. The hypothesis taken into consideration was that the Bathroom handle will contain more bacteria than the other surfaces. The experiment involved

titled “Test reveals antibiotic-resistant bacteria in a half hour” published on October 4, 2017 and written by members of the California Institute of Technology. The article is online so there are no page numbers. The article explains how many doctors will “often skip over first-line antibiotics like methicillin or amoxicillin” giving a stronger antibiotic to patients to ensure they will get healthy as soon as possible (“Test reveals antibiotic-resistant bacteria in a half hour,” 2017). Waiting two or

Nhavilay Wanda Nhavilay Professor W. Carlisle Microbiology Biol 2230 S05 28 November 2015 Tuberculosis the ancient bacteria Tuberculosis (TB) is one of the oldest recorded human diseases known to man, and is still the deadliest killers among bacterial infections (Smith). According to the World Health Organization (WHO), TB is believed to have killed more people worldwide than all the wars and famines combined. TB once viewed as a death sentence in the past, is now a preventable and treatable