Introduction to Microbiology Flashcards
(24 cards)
study of very small living (microorganisms)
Microbiology
Observed that plants are composed of cells
Robert Hooke
When did Hooke undertake his observation?
1665
Father of Microbiology
Anton Van Leeuwenhoek
First to observe microorganisms through microscope, at what year?
Anton Van Leeuwenhoek, 1673
The one who invented the microscope
Zacharias Janssen
He said that the maggots can only be seem on decaying meat when flies can lay they egg on it
Francesco Redi, 1668
What kind of experiment did Redi do?
Abiogenesis (living to non living)
At what year did Redi conduct his experiment?
1668
He claimed that microorganisms can arise spontaneously in heated nutrient broth.
John Needham, 1745
He modified Needham’s experiment, saying that the microorganisms are from the air entering the broth.
Lazzaro Spallanzani (1765)
He introduced the concept of biogenesis (living to living) in 1858.
Rudolf Virchow
Father of Modern Pathology
Rudolf Virchow
What does omnis cellula e cellula?
each cell comes from another cell (living to living)
He demonstrated that microorganisms are in the air everywhere.
Louis Pasteur
Yeast ferments sugar to?
Alcohol
Bacteria can oxidize alcohol to?
Acetic Acid
found that yeast ferments sugar to alcohol and that bacteria can oxidize alcohol to acetic acid
Louis Pasteur, 1858
Examples of Fungi:
Yeast, Molds, Mushrooms
Used to kill milk and alcoholic beverage pathogens
Pasteurization, 1866
It is the conversion of sugar to alcohol (acetic acid)
Fermentation
Use of Yeast
Fermentation
Scientific Name of Yeast
Saccharomyces cerevisiae
71 degrees Celsius for 15 seconds
High Temperature Short Time (Pasteurization)
