Preview

Escherichia Coli And Gram-Negative Bacterium Bacillus Cereus

Good Essays
Open Document
Open Document
269 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Escherichia Coli And Gram-Negative Bacterium Bacillus Cereus
Antibiotics are used for treating human infections that are caused by specific bacteria, fungi, protozoans, and other large viruses. They are generally grouped with the class of microorganisms that they inhibit. Antibiotics are used to fight off infections within the human body system by inhibiting the growth of its infectious microbes. Antibiotics have been considered one of the greatest newest innovations in medicine but there is still yet to be a perfect ideal antibiotic. In this experiment six antibiotics will be tested to determine which is the most effective on gram-negative bacterium Escherichia Coli and gram-positive bacterium Bacillus Cereus. In previous class experiments, gram-staining was conducted to determine the qualities of gram-positive

You May Also Find These Documents Helpful

  • Good Essays

    E. Coli Lab Report

    • 811 Words
    • 4 Pages

    The purpose of this lab is to successfully infiltrate E. coli bacterial cells with a pARA-R plasmid that is antibiotic resistant and has the rfp gene, or red fluorescent protein. This can be verified if the E. coli obtains the characteristics of the plasmid when it enters. To start, three Petri plates containing agar are needed. On each plate there is a control group and a treatment group; the treatment group being the one with the plasmid. Before the plasmid is put with the E. coli, first the bacteria are “stressed out” by warming them up in a hot water bath and cooling them down very rapidly in ice. The first plate consists of Luria Broth (LB), the second plate consists of LB and the antibiotic ampicillin (amp), and the last one contains LB, amp, and the sugar arabinose (ara). The bacterial cells are subjected to a heat shock and then are placed onto the three plates. The plasmid is spread on to only half of the first two plates, on the sides of the treatment group. Half of the E. coli get the plasmids and the other half do not (that side being the control group). On the third plate the plasmids are spread on the whole plate. The bacteria are left in an…

    • 811 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    BIO 104 Chapter 3

    • 7229 Words
    • 29 Pages

    Bug Bullet What makes antibiotics special is not just their ability to kill bacteria. After all, cyanide and soap kill bacteria just fine. The important thing about antibiotics is that they exert their destructive effects on bacteria without harming their human or animal host, even if taken internally. “We could hardly believe our eyes on seeing that bacteria could be killed off without at the same time killing the patient. It was not just amazement, it was a revolution.”…

    • 7229 Words
    • 29 Pages
    Powerful Essays
  • Good Essays

    Escherichia coli is a heterotrophic bacteria that is most commonly found within the small intestines of humans and other animals. This bacteria survives by getting its nutrition through ingesting unused or undigested nutrients in the bowels of its host. If ingested by humans or other mammals, E. coli causes food poisoning and serious infection. There are currently many different strains of E. coli and every living human carries at least one of them in their intestines. Although most strains are harmless there are a few that cause serious ailment. E. coli is a gram negative bacterial cell that consists of a very thin exterior membrane that covers a layer of peptidoglycan and ends with another thin membrane. E. coli is a bacillus or rod shaped, chemoheterotrophic bacteria cell that respires with anaerobic respiration using inorganic materials. E. coli is also a prokaryotic cell that reproduces asexually through binary fission for reproduction instead of meiosis.…

    • 695 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    2 Why are penicillins often more effective against Gram positive bacteria than Gram negative bacteria?…

    • 316 Words
    • 1 Page
    Satisfactory Essays
  • Better Essays

    Bordetella Pertussis

    • 1003 Words
    • 5 Pages

    antibiotic, such as penicillin, to restrain gram positive organisms from growing, although the antibiotic may slightly…

    • 1003 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Antibiotics are chemicals that we use to treat infection, often bacterial infections. They work by either killing the bacteria or by stopping them dividing and growing. Some work by interfering with enzymes that are essential in the replication of genetic material (either DNA or RNA) in the bacterial cells or in protein synthesis. Some work just by blocking the sites where enzymes usually join to the substrate, so they can’t join on and catalyse the reaction.…

    • 497 Words
    • 2 Pages
    Good Essays
  • Good Essays

    E.Coli

    • 725 Words
    • 3 Pages

    On November 14, 2012, Rita Bernstein visited Bergen Community College to talk about Escherichia Coli O157:H7. Escherichia coli or better known as E.coli is a tube-shaped bacterium that is found in the stomachs of warm-blooded animals. O157:H7 is a member of the E.coli family, which produces shiga toxin, and are capable of producing bloody diarrhea. E.coli O157:H7 attacks red blood cells, it interrupts flow of oxygen, and it breaks down walls of vessels.…

    • 725 Words
    • 3 Pages
    Good Essays
  • Good Essays

    E-Coli Lab Report

    • 867 Words
    • 4 Pages

    In this piece of coursework, there are few amounts of ideas and experiments that I could achieved of which different products to test for my concluding idea. The type of bacteria that I am going to discuss and chosen is E-coli. I will also going to research the effectiveness of antibacterial cleaning products, for instance sanitizer. I will also, research which is the most effective product for the house hold and some other work places.…

    • 867 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Annotated Bibliography

    • 321 Words
    • 2 Pages

    Antibiotics are drugs that kill bacteria, fungi, and parasites. Alexander Fleming discovered the first antibiotic by serendipity. Most antibiotics work by preventing the cell wall from producing peptoglycan. There are two types of antibiotics. The first is bacteriocidal.It kills the bacteria directly. The second is bacteriostatic. This method stops the bacteria from multiplying.…

    • 321 Words
    • 2 Pages
    Satisfactory Essays
  • Better Essays

    Society is fed the idea that in order to be healthy, one must consume or use these antibacterial or antibiotic products prophylactically. Antibacterial products are ideally used to protect oneself from the so called “harmful bacteria,” when in reality the products “kill susceptible bacteria and promote the growth of resistant strains” (Levy 1998b, 48). Society is producing the opposite of their desired results, and in the long run cause bacteria to become more resistant and abundant due to their lack of competition. What needs to be taking into consideration is the issue that these products are not only killing bacteria they deemed harmful, but also those susceptible bacteria that are helpful and…

    • 1997 Words
    • 8 Pages
    Better Essays
  • Better Essays

    Viruses & Bacteria

    • 1009 Words
    • 4 Pages

    Purpose: The purpose of this lab was to determine the effectiveness of certain antibiotics and determine their zone of inhibition…

    • 1009 Words
    • 4 Pages
    Better Essays
  • Good Essays

    • Antibiotics kill bacteria by either preventing bacteria from making cell walls, preventing bacteria from making complete proteins, or damaging the plasma membrane.…

    • 374 Words
    • 2 Pages
    Good Essays
  • Better Essays

    biology

    • 603 Words
    • 3 Pages

    One of the main responsibilities of a medical lab is to determine the identity of pathogenic bacteria. It is important to determine the specific type of bacterium causing disease so the physician is able to correctly treat the patients. The structure of bacteria plays a crucial role of what antibiotics works and which do not. The chemical reaction of the bacteria is also important. Most antibiotics alter or inhibit protein structure, inhibit transcription, inhibit translation, affect cell membrane structure, or alter cell-wall synthesis (1). Bacterial resistance is another pertinent medical reason for identification. The evolution of bacterial resistance has made treatment of diseases much more difficult. Therefore, it is important to know the chemistry, structure, and resistance of the pathogenic bacteria.…

    • 603 Words
    • 3 Pages
    Better Essays
  • Good Essays

    Evolutionary Medicine

    • 709 Words
    • 3 Pages

    In 2013, a study on bacterial E. Coli was performed, by Jabus G. Tyerman, to observe how the bacteria reacted with different types of antibiotics. This study was performed over a 60-day period in order for the researchers to obtain some significant data. The…

    • 709 Words
    • 3 Pages
    Good Essays
  • Good Essays

    E Coli Research Paper

    • 625 Words
    • 3 Pages

    The Escherichia Coli bacterium was discovered in 1885 by bacteriologist Theodor Escherich. He found the bacteria in the human colon and showed that some strains of Escherichia Coli were responsible for infant diarrhea and gastroenteritis. The Escherichia Coli was originally named Bacterium Coli. The name was changed to honor Theodor Escherich. E coli are normally harmless and are part of the normal flora found in the lower intestines of humans and healthy cattle. Some E. coli serotypes are known to cause serious food poisoning in humans.…

    • 625 Words
    • 3 Pages
    Good Essays