WHAT WORLD DO WE LIVE IN?
A Microbial World!
Who is Hippocrates and What did he believe in?
- the Father of Western Medicine
- Diseases had natural, not supernatural, causes
Spontaneous Generation
- Idea that Living organisms can develop from non-living or decomposing matter
Francesco Redi
- Discredited spontaneous generation
- Showed that maggots on decaying meat came from fly eggs.
John Needham
- Broth in flask -> boiled -> sealed
- Results: Broth became cloudy and contained microorganisms
Lazzaro Spallanzani
- Broth in flask -> sealed -> boiled
-Results: No growth microorganisms
Who is Louis Pasteur? What was his experiment?
- Swan Neck Experiment disproves spontaneous generation
- Placed nutrient solution in flasks with long, curved necks. Boiled the solutions let flask exposed to air.
- W/ curve neck: no contamination
- W/O curve neck: contamination
- Develops rabies vaccine
Robert Koch
- Identified specific microbes that cause anthrax, cholera, and tuberculosis.
- established a protocol to determine cause of infections diseases (Koch’s postulates)
Carolus Linnaeus
- Developed a new system for categorizing plants and animals, Taxonomy! (science of classification, does NOT mirror the evolution)
Who was modern vaccine technology pioneered by?
Hilleman
The single largest known “microbe”
covers 9.7 km^2
When comparing the estimated number of bacteria in oceans and number of stars in the entire universe…
there are way more bacteria than stars
As of 2023, it is estimated that there are a total of ____ viruses on Earth
-1 x 10^31
The instrumental work of L. Pasteur took place…
During the American Civil War
Which is the following acellular?
a) Fungus
b) Protozoan
c) Virus
d) Bacterium
c) Virus
As a teenager/young adult, Louis Pasteur was interested in…
Art
Which is correct?
a) all the pathogens are microbes
b) most microbes are pathogens
c) most pathogens are microbes
d) all the microbes are pathogens
c) most pathogens are microbes
“No scientist is an island” means that…
Science is both cumulative and collaborative
Which of the following foods is NOT made by fermentation?
a) orange juice
b) beer
c) bread
d) cheese
a) Orange Juice
Who was the first to observe “animalcules” under the microscope?
Antonie Van Leeuwenhoek
