History of Microbiology and Contributors Quiz
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Questions and Answers

Who among the following proposed a Contagium vivum as a possible cause of infections disease?

  • Robert Koch
  • Varo and Columella
  • Fracastorius (correct)
  • Louis Pasteur
  • Before the late 19th century, what was believed to be the cause of sickness?

  • Tiny living creatures
  • Imbalance in body humor
  • Bad odors
  • Sins (correct)
  • What did Antonie van Leeuwenhoek contribute to the field of microbiology?

  • Identified bacteria for the first time
  • Discovered penicillin
  • Proposed the germ theory of disease
  • Developed the first microscope (correct)
  • Which scientist suggested that each disease was caused by a separate agent?

    <p>Robert Koch</p> Signup and view all the answers

    What did Varo and Columella postulate as the cause of diseases in the first century BC?

    <p>Tiny living creatures</p> Signup and view all the answers

    What were diseases thought to be caused by before the late 19th century?

    <p>Bad smells</p> Signup and view all the answers

    Who is considered to be the father of antiseptic surgery?

    <p>Joseph Lister</p> Signup and view all the answers

    Which scientist discovered the antibiotic penicillin?

    <p>Alexander Fleming</p> Signup and view all the answers

    Who developed the first vaccine, the smallpox vaccine?

    <p>Edward Jenner</p> Signup and view all the answers

    Which scientist was the founder of the electron microscope?

    <p>Ernst Ruska</p> Signup and view all the answers

    Who discovered polymerase chain reaction (PCR)?

    <p>Karry B Mullis</p> Signup and view all the answers

    'Gram stain' was developed by which microbiologist?

    <p>Hans Christian Gram</p> Signup and view all the answers

    What did Louis Pasteur's experiments involving goosenecked flasks prove?

    <p>The S-shape of the goosenecked flask trapped dust particles from the air, preventing them from reaching the broth.</p> Signup and view all the answers

    What was a major contribution of Louis Pasteur and Robert Koch to microbiology?

    <p>They resolved the controversy of spontaneous generation versus biogenesis.</p> Signup and view all the answers

    What was the significance of the Golden Age of microbiology?

    <p>It led to the acceptance of microbiology as a discipline of biology worldwide.</p> Signup and view all the answers

    What was Louis Pasteur's role in disproving spontaneous generation?

    <p>He proved that organisms in dust were responsible for growth in broth.</p> Signup and view all the answers

    What conclusion did Louis Pasteur reach about microorganisms?

    <p>Microorganisms are not spontaneously generated, but come from other microorganisms.</p> Signup and view all the answers

    What did Louis Pasteur find out about fermentation during his experiments?

    <p>Microbes are responsible for the process of fermentation, leading to alcohol production.</p> Signup and view all the answers

    Who is known as the Father of Antiseptic surgery?

    <p>Joseph Lister</p> Signup and view all the answers

    Which English physician was the first to prevent smallpox through vaccination?

    <p>Edward Jenner</p> Signup and view all the answers

    What method did Joseph Lister devise to destroy microorganisms in the operation theatre?

    <p>Spraying carbolic acid as a fine mist</p> Signup and view all the answers

    Which term is used to describe the process Edward Jenner used to protect people from smallpox?

    <p>Vaccination</p> Signup and view all the answers

    What was the relationship between cowpox and smallpox as discovered by Edward Jenner?

    <p>Contacting cowpox provides immunity to smallpox</p> Signup and view all the answers

    When did Edward Jenner prove that inoculating with pus from cowpox lesions provided protection against smallpox?

    <p>May 14th, 1796</p> Signup and view all the answers

    Who was awarded the Nobel Prize in 1939 for the discovery of the first sulpha drug?

    <p>Domagk</p> Signup and view all the answers

    Which French scientists showed that Prontosil breaks down into sulfanilamide within the body?

    <p>Therese Trefonel</p> Signup and view all the answers

    Who discovered the 'wonder drug' penicillin in 1929?

    <p>Alexander Fleming</p> Signup and view all the answers

    How were antibiotics discovered in the 1920s?

    <p>Accidentally when a Petri dish culture became moldy</p> Signup and view all the answers

    What did Sir Alexander Fleming discover was responsible for the antibacterial action seen in a Petri dish culture?

    <p>Mold</p> Signup and view all the answers

    What was the first antibiotic discovered by Sir Alexander Fleming?

    <p>Penicillin</p> Signup and view all the answers

    Study Notes

    History of Microbiology

    • Until the late 19th century, people believed that life could form spontaneously and that diseases were caused by bad odors or sins.
    • Opinions about disease causes differed between cultures and societies, with treatments ranging from removing bad smells to prayer and rituals.
    • The concept of contagion was known, but attributed to bad odors or spirits rather than tiny living creatures.

    Early Contributors

    • Varo and Columella (1st century BC) proposed that diseases were caused by invisible beings (Animalia minuta) inhaled or ingested.
    • Fracastorius of Verona (1546) proposed a Contagium vivum as a possible cause of infectious diseases.
    • Von Plenciz (1762) suggested that each disease was caused by a separate agent.

    Important Contributors in Microbiology

    • Robert Hooke (1635-1703)
    • Antonie van Leeuwenhoek (1632-1723)
    • Louis Pasteur (1822-1895)
    • Robert Koch (1843-1910)
    • Joseph Lister introduced aseptic techniques for controlling microbes using physical and chemical agents.

    Development of Vaccines

    • Vaccination was discovered before germ theory, but wasn't fully understood until Pasteur's time.
    • Edward Jenner used pus from cowpox scabs to vaccinate people against smallpox in 1796.

    Other Important Contributors in Microbiology

    • Antonie Philips van Leeuwenhoek: Discovered single-lens microscope and named organisms as 'Little animalcules'.
    • Edward Jenner: Developed the first vaccine of the world, the smallpox vaccine using the cowpox virus.
    • Joseph Lister: Father of antiseptic surgery, used carbolic acid during surgery.
    • Hans Christian Gram: Developed the Gram stain.
    • Ernst Ruska: Founder of the electron microscope.
    • Alexander Fleming: Discovered the antibiotic penicillin.
    • Elie Metchnikoff: Described phagocytosis and termed phagocytes.
    • Kleinberger: Described the existence of L forms of bacteria.
    • Barbara McClintock: Described transposons.
    • Walter Gilbert and Frederick Sanger: Developed the method of DNA sequencing in 1977.
    • Karry B Mullis: Discovered polymerase chain reaction (PCR).

    The Golden Age of Microbiology

    • Began with the work of Louis Pasteur and Robert Koch, who had their own research institutes.
    • Pasteur proved that microorganisms are not spontaneously generated from inanimate matter but arise from other microorganisms.
    • Pasteur also found that fermentation of fruits and grains, resulting in alcohol, was brought about by microbes.
    • He determined that bacteria were responsible for the spoilage of wine during fermentation.

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    Explore the history of microbiology and learn about the contributors who shaped this field. Discover how our understanding of tiny living organisms and their impact on human lives has evolved since the late 19th century.

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