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  • Water And Milk E Coli
    985 words
    Biology Escherichia coli Escherichia coli Escherichia coli is an Enterobactericeae bacteria. This family name is derived from the fact that nearly all species in it, more or less, constantly inhabit the intestines of humans and animals. Because of its widespread presence in the environment and its ability to promote disease in humans, one of the most prominent members of this family is the species Escherichia coli. This bacterium is so common that its name has come to describe all similar bacter...
  • Different From Other Bacteria
    4,548 words
    BACTERIA (Gr. bakterion, "little staff"), group of microscopic, unicellular organisms that lack a distinct nucleus and that usually reproduce by cell division. are tiny, ranging from 1 to 10 micrometers (1 micrometer equals 1/25,000 in), and are extremely variable in the ways they obtain energy and nourishment. They can be found in nearly all environments-from air, soil, water, and ice to hot springs; even the hydrothermal vents on the deep ocean floor are the home of sulfur-metabolizing bacteri...
  • More Invasive Bacteria Responsible For Human Disease
    4,006 words
    Archaebacteria, simple organisms that resemble ordinary bacteria in that they lack a well-formed nucleus and can therefore be characterized as procaryotes in the classification of living organisms. Their biochemistry differs in important ways from that of other bacteria, however, and some biologists place them in a kingdom of their own. According to these theories, archaebacteria may be ancestral to the main cellular body of eucaryotes, or organisms with well-formed cell nuclei, whereas ordinary...
  • Soil By Non Symbiotic Bacteria
    802 words
    a) Production of food: cheese, yogurt, vinegar, wine, sour cream, etc. b) Industry: cleaning up petroleum, remove waste products from the water, synthesize drugs and chemicals. Symbiosis: The interdependence of different species, which are sometimes called symbiont's. There are three main types of symbiosis, based upon the specific relationship between the species involved: mutualism, parasitism, and commensalism. Symbiosis that results in mutual benefit to the interdependent organisms is common...
  • Positive Bacteria
    1,223 words
    Introduction: The purpose of this experiment is to isolate and differentiate between two bacterial species using Gram's stain, microscope visualization and different biochemical tests. Bacteria can be classified and differentiated based upon different morphological characteristics, staining reaction, nutritional needs, cultural characteristics, physiology, cellular chemistry, and biochemical tests results for specific metabolic end products. Identification of unknown bacteria is useful in many s...

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