Petri dish

Decent Essays
Improved Essays
Superior Essays
Great Essays
Brilliant Essays
    Page 33 of 40 - About 394 Essays
  • Superior Essays

    Antibiotics Misused

    • 1111 Words
    • 5 Pages

    advance in a subject, the details may be worked out by a team, but the prime idea is due to enterprise, thought, and perception of an individual” (“Alexander”). Following his own advice, Fleming noticed something inhibiting bacterial growth in his petri dish and extracted the substance. Fleming discovered penicillin, the world’s first antibiotic that would eventually save countless numbers of lives (“Discovery” par. 4). Since then, many new antibiotics have been introduced in the market;…

    • 1111 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    Genetically modified organisms, better known as GMOs, have been a controversial topic that has caused an uproar among the population. The researcher’s interest pertaining to this topic was peaked approximately one year ago during a biotechnology lecture. Throughout this lecture Mrs. Rausch, a former biotechnologist, explained the fundamental concepts and processes of making genetically modified organisms. Not only has this lecture shaped the researcher’s bias, but his extensive research for…

    • 1244 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Alexander Fleming “discovered the existence penicillin through a combination of perceptiveness and luck” (Krogh, 2011, p. 398). While he was growing bacteria in a petri dish, he notices the appearance of a type of fungus. The contamination caught the attention of Fleming. He realizes that he had found a substance that had the power to kill bacteria. Fleming continued to grow more fungal mold and tested it on different kind of bacteria. Additionally, he tested it on healthy mice in which he…

    • 1344 Words
    • 5 Pages
    Improved Essays
  • Improved Essays

    Sweet Potatoes Osmosis

    • 1375 Words
    • 6 Pages

    Analysis In part one, the varied amounts of surface area and volume had an effect on the diffusion rates of the trials. The greater the ratio was between surface area to volume, the rate of diffusion would increase as well. For example, in cell three the surface area to volume ratio was 11.5 cm which resulted in a diffusion rate of .30 cm/min while cell one had a surface to volume ratio of 3 cm had a diffusion rate of .015 cm/min. This shows that when the surface area and volume are…

    • 1375 Words
    • 6 Pages
    Improved Essays
  • Great Essays

    attack the root of the illness rather prescribing the current treatment method, which tends to the symptoms. The cells in this area of study are able to live independently under controlled conditions or they can reproduce in the special solutions of petri dishes and test tubes. In these manipulated…

    • 1762 Words
    • 8 Pages
    Great Essays
  • Superior Essays

    Genetically Modified Organisms, more commonly known as GMOs, are organisms whose DNA has been scientifically modified by moving genes between different organisms that don’t naturally breed (Hirsch, 2014, para. 1). In other terms, GMOs have a gene in their DNA that researchers have added into it in order to improve the overall quality of that crop. Even though researchers have added strands of DNA to an organism, those organisms still look like the original organism (Ostrander, 2014). According…

    • 1301 Words
    • 6 Pages
    Superior Essays
  • Superior Essays

    It identifies and attacks the viral DNA and then it changes the targeted DNA strand that can be replaced or turned off. This can only be done via IVF (in vitro fertilization), which is taking the genomes of both sexes and fertilizing them in a petri dish to become an embryo then implanted back into the woman’s uterus. There is also, somatic cell modification. Which changes the adult genes of patients that are already born. Altering the cells can only make changes to the body, the edited gene…

    • 1379 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    Why Do We Kill Animals?

    • 1257 Words
    • 6 Pages

    saving treatments on both animals and humans and that there is no alternative. With today’s ever-changing society, scientists have found a new way to test substances and how they react with our bodies. Scientists take human cells and place them in a petri dish; by doing this, they can see how our bodies would react. Some may ask how would we test a substance on our skin? Artificial human skin can be made from sheets of human skin cells which are more useful and dependable than animals delicate…

    • 1257 Words
    • 6 Pages
    Improved Essays
  • Superior Essays

    Everyone in their lifetime has either had a scrape or cut somewhere on their extremities, that have ranged from minor to severe. If not treated properly, those simple cuts and scrapes could easily lead to major infections. Although, today many cuts and scrapes do not become infections, there was once a time that even the simplest, little cut could kill you. History has shown that many deaths have come from deadly infections or other bacteria related incidents. Over the years, there have been…

    • 1301 Words
    • 6 Pages
    Superior Essays
  • Improved Essays

    Human Genome Project

    • 1298 Words
    • 6 Pages

    DNA is a molecule consisting of hereditary material, and is present in almost all organisms. DNA has four nitrogenous bases that make up codes: adenine (A), cytosine(C), guanine(G), and thymine(T). The sequences of these chemical bases determine what information is present to create specific amino acids. The structure of DNA is similar to a twisting ladder and consists of paired bases (A to T, C to G), phosphate molecules, and sugar molecules. DNA is important because it instructs an organism's…

    • 1298 Words
    • 6 Pages
    Improved Essays
  • Page 1 30 31 32 33 34 35 36 37 40