Microbiology Exam 1 Review.docx

Microbiology Exam 1 Review.docx - 1 List several ways in...

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1. List several ways in which microbes affect our lives? a. Cause infectious diseases b. Used to make antibiotics c. Used in fermentation 2. What are the three domains? a. Prokaryotes b. Eukaryotes c. Archaea 3. What is the cell theory? Explain the importance of the observation made by Hooke and Van Leeuwenhoek a. Hooke came up with the cell theory i. The theory that all living things are composed of cells b. Van Leeuwenhoek invented first microscope that allowed us to see microorganisms 4. Compare spontaneous generation and biogenesis. a. What evidence supported biogenesis? i. Pasteur’s work supported biogenesis. Used sterile broth with S shaped tube that did not allow microbes into the sterile broth, proving that life cannot generation spontaneously. b. How was spontaneous generation disproved? i. 1. Pasteur first poured beef broth into a long-necked flask. ii. 2. Next he heated the neck of the flask and bent it into an S-shape; then he boiled the broth for several minutes iii. 3. Microorganisms did not appear in the cooled solution, even after long periods
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