lecture 2

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Questions and Answers

Who built a compound microscope and coined the term "cell" to describe the orderly arrangement of small boxes?

  • Antonie van Leeuwenhoek
  • Robert Hooke (correct)
  • Schleiden and Schwann
  • None of the above

Who was the first to make and use lenses to observe living microorganisms?

  • Antonie van Leeuwenhoek (correct)
  • Robert Hooke
  • Schleiden and Schwann
  • None of the above

What did Schleiden and Schwann formulate?

  • The Hypothesis of Spontaneous Generation
  • The Cell Theory (correct)
  • The Theory of Evolution
  • The Atomic Theory

What does the Hypothesis of Spontaneous Generation propose?

<p>Combination of water, fire, air, and soil can create living organisms (B)</p> Signup and view all the answers

Who discovered that maggots only appeared on uncovered meat when flies laid eggs in the meat?

<p>Francesco Redi (B)</p> Signup and view all the answers

What did Lazaro Spallanzani do to prevent spoilage of broth?

<p>Boil it and close it (B)</p> Signup and view all the answers

What did critics say about Lazaro Spallanzani's experiment on broth?

<p>Loss of oxygen inhibited microbial growth (B)</p> Signup and view all the answers

How did Louis Pasteur end the debate about spontaneous generation?

<p>With a famous swan-neck flask experiment (A)</p> Signup and view all the answers

What did Louis Pasteur do to prevent unwanted organisms in wine?

<p>Heated it to 56 °C in the absence of oxygen (D)</p> Signup and view all the answers

How did Louis Pasteur develop a vaccine for rabies?

<p>He used dried spinal cord from rabbits infected with rabies (C)</p> Signup and view all the answers

How did Louis Pasteur test his rabies vaccine?

<p>He administered it to a 9-year-old boy who had been severely bitten by a rabid animal (B)</p> Signup and view all the answers

What did Robert Koch do to improve the culture of bacteria?

<p>Added agar to the bacteriological media (C)</p> Signup and view all the answers

What did Robert Koch identify as the bacterium that causes anthrax?

<p>Bacillus anthracis (D)</p> Signup and view all the answers

What did Robert Koch develop as a vaccine for tuberculosis?

<p>Tuberculin (C)</p> Signup and view all the answers

What are Koch’s Postulates?

<p>A set of principles for associating a microorganism with a disease (A)</p> Signup and view all the answers

Flashcards

Who was Robert Hooke?

Built a compound microscope and coined the term "cell".

Who was Antonie van Leeuwenhoek?

First to observe living microorganisms through lenses.

What did Schleiden and Schwann do?

Formulated the Cell Theory.

What is Spontaneous Generation?

Life arises spontaneously from non-living matter.

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Who was Francesco Redi?

Maggots came from fly eggs on uncovered meat.

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Who was Lazaro Spallanzani?

He boiled broth and closed it to prevent spoilage.

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What was the criticism of Spallanzani's experiment?

Loss of oxygen inhibited microbial growth.

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How did Pasteur end the spontaneous generation debate?

Used swan-neck flasks to disprove spontaneous generation.

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What did Pasteur do to prevent wine spoilage?

Heated wine to 56°C to kill unwanted organisms.

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How did Pasteur develop rabies vaccine?

Used dried spinal cord from infected rabbits.

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How was Pasteur's rabies vaccine tested?

Administered it to a boy bitten by a rabid animal.

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How did Koch improve bacteria culture?

Added agar to bacteriological media.

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What causes anthrax, according to Koch?

Bacillus anthracis

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What vaccine did Koch develop for tuberculosis?

Developed tuberculin

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What are Koch's Postulates?

Principles to associate microorganisms with disease.

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