Preview

Prokaryotes Research Paper

Better Essays
Open Document
Open Document
1943 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Prokaryotes Research Paper
What exactly is a prokaryote? Why are they so important in the scientific universe? To the amazement of many, prokaryotes are some of the most important organisms on Earth, and may have been the first to ever thrive on planet Earth. From what modern scientists know, prokaryotes were the first organisms on Earth, surviving millions of years on the treacherous terrain that was early Earth before humans ever came into existence. Prokaryotes are known for their incredible abilities to survive in the harshest of climates, from incinerating heat to extreme drought (Boundless). For this reason, it is widely accepted that prokaryotes were the first organisms to colonize on planet Earth when the atmosphere was a small percentage of the precious ozone …show more content…
Regarding the cell walls of bacteria, a Gram stain determines what kind of bacterium the cell is. The Gram stain works by creating a purple dye that either attaches or fails to attach to the peptidoglycan either found or not found on the cell wall of the cell. Gram-positive bacteria are cells that have a large amount of peptidoglycan in their cell wall, and those that are Gram-negative have an extra cell wall that does not allow the stain to set on the cell wall (Vidyasagar). In addition to staining the cell, the identification of bacterial shape is a common and efficient way to determine the exact nature of the cell. The three shapes of bacteria are round or cocci, cylindrical or bacilli, and spiral or spirilla. These three common shapes are associated with a quick way for scientists to categorize the threat level and abilities of the bacterial cell. The final way to categorize a bacterial cell is by its genetic makeup, or more specifically its ribosomal sequences within its RNA. The similarities and differences within the ribosomal sequences help scientist determine how much two different bacterial cells are related. These classifications are very important, due to the fact that the topic of this paper, Vibrio Cholerae, the bacterial source of Cholera disease, is known to be a Gram-negative …show more content…
However, there are many other symptoms that go along with the V. Cholerae infection. Another well-known symptom would be a fishy odor to the stool of the human affected, caused by the natural stench of the bacteria itself. In addition, vomiting, rapid heart rate, dry mucous membranes, low blood pressure, cramps, and rectal pain are red flags for possible dehydration and Cholera infection. Cholera can also be categorized as severe, which affects usually 5-10% of all of the individuals infected with

You May Also Find These Documents Helpful

  • Powerful Essays

    Double Unknown Lab Report

    • 1229 Words
    • 5 Pages

    The following tables are each corresponding to either the Gram-positive sample or Gram-negative sample and include the tests utilized along with their results all in the order each test was performed. In section 10, Figures, there are some pictures corresponding to the stains performed. In Figure 1, the Gram-positive stain, you can clearly see the purple color and cocci morphology in grapelike clusters. Figure 2 is the Gram-negative stain with the safranin color and shows bacilli cellular morphology.…

    • 1229 Words
    • 5 Pages
    Powerful Essays
  • Powerful Essays

    From the streak plate, several slides were made to determine the morphology of unknown 45. A Gram stain, used to indicate the type of cell wall possessed by the bacterium, was performed. U45 stained a bright pink color and were small ovals and rods in shape. This indicated that U45 was a gram-negative bacillus bacterium. A capsular stain was then performed to determine the presence or absence of a capsule. Unknown 45 was positive for capsules. Having determined that U45 was gram-negative, there was no need to perform the Schaeffer-Fulton endospore stain, which is used detect the presence of endospores in certain gram-positive bacteria.…

    • 1738 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    MicroOrganism

    • 777 Words
    • 4 Pages

    The purpose of this experiment is to distinguish and indentify an unknown bacterium. There are several tests that can help one eliminate and narrow down the options. The most useful test, and the very first one done, is a gram stain. This test will tell whether the bacterium is gram-positive or gram-negative. After the type of gram stain is identified, the tester has a wide array of differentiating tests at their disposal. Based on the results from these tests, and the numerous others that are available, one can accurately establish the identity of an unknown bacterium.…

    • 777 Words
    • 4 Pages
    Good Essays
  • Better Essays

    Micro Unknown Lab Report

    • 2042 Words
    • 9 Pages

    A gram stain was performed to assess the shape and other characteristics of the bacteria, and to ensure that there was no gram positive contamination. Gram positive cells have a thick outer peptidoglycan layer that traps the crystal violet-iodine complex more than gram negative cells. As a result, they are less vulnerable to the de-colorization step with alcohol making them appear purple in color, while the gram bacteria negative appear pink.…

    • 2042 Words
    • 9 Pages
    Better Essays
  • Better Essays

    Unknown Lab Report

    • 2145 Words
    • 9 Pages

    The tests performed on the unknown bacteria cultures were all used to determine the identity of the bacteria. Each of the tests performed provided some key information about the bacteria in question and how it functions. Not all of the tests were performed on every culture, however, as some of the tests were used only for gram (+) or gram (–) bacteria, while others were even more specific and used only for cocci bacteria. The tests performed and what constitutes a positive and negative test are as follows.…

    • 2145 Words
    • 9 Pages
    Better Essays
  • Powerful Essays

    In your Lab Atlas you will need to read Section 5: Bacterial Cellular Morphology and Simple Stains and Section 6: Bacterial Cell Structures and Differential Stains and then answer the following questions:…

    • 1400 Words
    • 6 Pages
    Powerful Essays
  • Powerful Essays

    Microbiology lab final

    • 396 Words
    • 4 Pages

    Microbiology Final exam Study reference 1. Gram Stain * Verify if bacteria are present or not. * Controls – positive (purple) – S.aureus negative ( red/pink) – E.coli 2.…

    • 396 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    There is most certainly microbial life on other planets. Life cannot be produced by non-life. When the earth was created, it is incredibly likely that an asteroid, meteor, or cosmic dust had come to the Earth’s surface and began to grow, multiply, and evolve. There is evidence of extraterrestrial microfossils dating back millions to billions of years ago; indicating that, at one point, there was microbial life on other planets. Prokaryotes multiply by a means of asexual reproduction called binary fission. In binary fission, the cell simply needs to grow twice its size, and then it divides into two identical cells. Since prokaryotes are very simple organisms, and there is evidence of ancient extraterrestrial microbial…

    • 459 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Bacteria can be distinguished from one another by their morphology (size, shape, and staining characteristics). In this lab experiment, bacterial morphology was examined by observing both stained and unstained organisms.…

    • 533 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    contaminated fruits or vegetables, as well by drinking raw fruit juices or milk, or sewage…

    • 425 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Prokaryotic cells are single celled organisms that were formed at the formation of the earth, so are the most basic life forms. The prokaryotes are organised in the ‘three domain system’ and include bacteria and blue-green algae. Prokaryotes live in many environments including extreme habitats such as hydrothermal vents, hot springs, swamps, wetlands, and the guts of animals.…

    • 1203 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Lab 2 Prokaryotes

    • 850 Words
    • 6 Pages

    1) Open and read the attached file ((Lab02_Prokarayotes) TWICE before attempting to complete this activity.…

    • 850 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Microbiology notes

    • 563 Words
    • 3 Pages

    1. Organisms that have a prokaryotic cell structure, no peptidoglycan in cell walls and unique cell membrane lipids would most likely be:…

    • 563 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Vibrio Cholera Outbreak

    • 351 Words
    • 2 Pages

    In general, members of the genus Vibrio are Gram-negative, motile and most of the members have a single polar flagellum, when grown in liquid medium (Kaysner & DePaola, 2004). Vibrio cholerae lives naturally in riverine and is the causative agent of cholera outbreaks and epidemics. Vibrio cholerae is comma-shaped. Initial isolates are slightly curved, whereas they can appear as straight rods upon laboratory culturing. Vibrio cholerae is a facultative anaerobe and can undergo respiratory and fermentative metabolism. Vibrio parahaemolyticus is a curved and rod-shaped and usually found in brackish, saltwater. Once ingested, this bacteria can cause gastrointestinal problems. Vibrio parahaemolyticus is oxidase positive, facultatively aerobic and does not form spores and same like other members of the Vibrio genus, this bacteria is also motile and has a polar flagellum (Ryan and Ray, 2004).…

    • 351 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    An individual with cholera is capable of losing one liter of fluid per hour. Within the loss of one to two liters of water, mild symptoms such as cotton mouth and thirst arise. At four liters of fluid loss, moderately severe symptoms such as fatigue, confusion, and dizziness begin; the immune system is not functioning properly. After losing eight liters of fluids, the organs will shut down; they will die without treatment, and it can occur in less than a day. This is due to hypovolemic shock; as the large amount of water is excreted, it makes our blood thicken, which will lead to problems in our circulation, keeping it from reaching our organs. The potential impact of the overall health is…

    • 958 Words
    • 4 Pages
    Good Essays