Introduction to Microbiology
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Questions and Answers

Who made the first useful microscopes and was the first to observe and describe single-celled organisms?

  • Louis Agassiz
  • Louis Pasteur
  • Antony van Leeuwenhoek (correct)
  • Robert Hooke
  • What was the concept of 'Spontaneous generation' related to?

  • The study of ancient microbial fossils
  • The development of vaccines for infectious diseases
  • The discovery of genetic recombination in bacteria
  • The belief that microbes could arise spontaneously from non-living material (correct)
  • What is microbiology?

  • The study of celestial bodies in outer space
  • The study of very large living things that can be seen with the naked eye
  • The study of ancient organisms found in fossils
  • The science that studies very small living things that cannot be seen with the naked eye (correct)
  • Where are microorganisms commonly found?

    <p>Everywhere, including on plant surfaces, in the air, water, dust, and soil</p> Signup and view all the answers

    What is the size of microorganisms?

    <p>Very small</p> Signup and view all the answers

    Who improved the design of Leeuwenhoek's microscope and observed the structure of plant cells and some microbes?

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

    Who discovered the first relatively safe and effective antibiotics isolated from microorganisms?

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

    Which branch of microbiology primarily deals with the study of Fungi and Yeast?

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

    Who developed the first useful drug against a variety of bacterial infections, the first sulfa drug?

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

    Which technique was developed by Robert Koch and his colleagues for obtaining pure culture of colonies of bacteria and fungi?

    <p>Solid media</p> Signup and view all the answers

    What is the branch of microbiology that is concerned with the study of viruses?

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

    Who demonstrated that microorganisms are present in the air?

    <p>Louis Pasteur</p> Signup and view all the answers

    Which percentage of all known species of bacteria are beneficial?

    <p>87%</p> Signup and view all the answers

    What did Waksman discover?

    <p>Streptomycin and a number of other antibiotics</p> Signup and view all the answers

    Which branch of microbiology is concerned with the studying of Algae?

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

    What did Robert Koch and his colleagues develop?

    <p>Solid media technique for obtaining pure culture of colonies of bacteria and fungi</p> Signup and view all the answers

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