The Discovery of Pneumococci's Virulence
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Questions and Answers

Which researcher worked at the Rockefeller Institute to discover the basis of the infectious virulence of pneumococci?

  • Albert Einstein
  • Marie Curie
  • Louis Pasteur
  • Oswald Avery (correct)
  • What was the basis of the variation in virulence among pneumococci?

  • Chemical transformation (correct)
  • Environmental factors
  • Genetic mutation
  • Unknown
  • When was the phenomenon of transformation of live pneumococci from non-virulent to virulent first reported?

  • 1932
  • 1928 (correct)
  • 1950
  • 1945
  • How did the now-virulent pneumococci breed after the chemical transformation?

    <p>They bred as virulent organisms indefinitely</p> Signup and view all the answers

    What was the potential significance of understanding the basis of variation in virulence among pneumococci?

    <p>Diagnosis of pneumococcal infections</p> Signup and view all the answers

    Which researcher discovered the phenomenon of transformation of live pneumococci from non-virulent to virulent?

    <p>Oswald Avery</p> Signup and view all the answers

    What was the basis of the variation in virulence among pneumococci?

    <p>Chemical transformation</p> Signup and view all the answers

    What was the significance of understanding the basis of variation in virulence among pneumococci?

    <p>Development of antisera therapy</p> Signup and view all the answers

    What did the transformation of live pneumococci from non-virulent to virulent involve?

    <p>Chemical extraction of virulent pneumococci</p> Signup and view all the answers

    What did the now-virulent pneumococci breed as after the chemical transformation?

    <p>Virulent organisms</p> Signup and view all the answers

    Which of the following best describes the scope of chemistry?

    <p>The study of matter and its properties</p> Signup and view all the answers

    What is the relationship between chemistry and physics?

    <p>Chemistry and physics are closely related</p> Signup and view all the answers

    Why is chemistry sometimes called the central science?

    <p>Because it is the foundation for understanding other scientific disciplines</p> Signup and view all the answers

    What does chemistry study in relation to chemical compounds?

    <p>Their physical properties</p> Signup and view all the answers

    Which scientific disciplines can benefit from an understanding of chemistry?

    <p>Ecology and pharmacology</p> Signup and view all the answers

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