The Germ Theory of Disease: Definition & Louis Pasteur


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Why did Pasteur use a swan-necked flask when he was trying to disprove spontaneous generation?

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1. How was the theory of spontaneous generation used to explain why food that was left out would eventually be covered in microbes, maggots, flies, and rodents?

2. What is the Germ Theory of Disease?

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About This Quiz & Worksheet

Our current understanding of germs and their effects on our health and our food can be traced to the work of 19th Century scientist Louis Pasteur. You can assess yourself on Pasteur's work and his relation to germ theory with this quiz and worksheet. The quiz questions will test you on main points from the lesson, such as the specifics of germ theory, and Pasteur's experiments.

Quiz & Worksheet Goals

This quiz and worksheet will test you on:

  • The principles of spontaneous generation theory
  • How Pasteur disproved spontaneous generation
  • Specifics of the germ theory of disease
  • Pasteur's theories on microbes
  • Pasteur's observations on bacteria

Skills Practiced

  • Information recall - use the assessment questions to test your recollection of Louis Pasteur's theories and the germ theory of disease
  • Reading comprehension - ensure that you understand the specifics of germ theory, as well as previous theories, and how Pasteur demonstrated germ theory through experiments
  • Knowledge application - utilize your understanding of the topic to answer the assessment questions on key facts related to the work of Louis Pasteur and his influence on our understanding of germs

Additional Learning

More facts on this subject can be found in the associated lesson called The Germ Theory of Disease: Definition & Louis Pasteur. This lesson covers the following topics:

  • Overview of bacteria
  • Spontaneous generation theory
  • Louis Pasteur's work
  • The germ theory of disease