(2) EVOLUTION OF MICROBIOLOGY Flashcards
During this time, as many as 11 different types of fossils of primitive microorganisms have been found in ancient rock formations in Western Australia
3.5 billion years ago
During this time, animals made their appearance on earth
900 and 650 million years ago
During this time, humans have existed
Past 100,000 years or so
First microorganisms on Earth
Cyanobacteria and Archaeans
During this time, a plague (an epidemic) broke out in Egypt
3180 BC
During this time, an outbreak of a smallpox-like disease originating from China spread worldwide
1122 BC
The exhumed mummified remains of _______ showed lesions resembling smallpox
Rameses V
States that life may arise from non-living matter
Theory of Spontaneous Generation
States that life must arise from pre-existing life
Theory of Biogenesis
- Proposed that invisible organisms may be involved in disease
- Proposed that epidemic diseases are caused by transferable tiny particles or “spores”
Girolamo Fracastoro (1546)
- Englishman who explored various matter with a compound microscope
- Discovered the smallest structural units were little boxes called “cells”
Robert Hooke (1660)
- Demonstrated that animals do not arise spontaneously from dead organic matter
Francesco Redi (1668)
- The first to describe bacteria and protozoa using a small, simple microscope
- Known as the “Father of Microbiology”
- “Animacules”
Antonie Van Leeuwenhoek (1676)
- He demonstrated experiments that seemed to show that there was a life force that produced spontaneous generation
John Needham (1745)
- Demonstrated that heated broth, in the absence of air, do not support spontaneous generation
- Challenged the claim of John Needham
Lazzaro Spallanzani (1770)
- An English surgeon who introduced the first vaccine against smallpox
- Explained the effectivity of using cowpox vaccine as an immunization for smallpox in humans
Edward Jenner (1796)
- A Hungarian Physician who substantiated his theory that childbed fever is a contagious disease transmitted to women by their physicians during childbirth
- Postulated the theory of washing with chlorinated lime solutions
Ignaz Philipp Semmelweis (1847-1850)
- London physician who demonstrated the epidemic spread of cholera through a water supply contaminated with human sewage
John Snow (1853-1854)