History and Scope of Microbiology Flashcards
Study of organisms and agents too small to be seen clearl by the unaided eye
Microbiology
Suggested that disease was caused by invisible living creatures
Lucretius and Girolamo Fracastoro
How did Antony van Leeuwenhoek constructed his microscope?
Composed of double convex glasses, lenses held between two silver plates
How many times could Antony van Leeuwenhoek’s microscope can magnify?
50 to 300 times
Based on Leeuwenhoek’s description sent to the Royal Society of London, what he saw from his microscope was/were?
Bacteria and protozoa
Who carried out a series of experiments on decaying meat and its ability to produce maggots spontaneously?
Francisco Redi
Performed a series of experiments with boiled mutton broth inside tightly stoppered flasks?
John Needham
Who improved Needham’s experimental design with sealed flasks that contained water and seeds?
Lazzaro Spallanzani
Claimed and proved that microbial growth could occur without air contamination
Felix Pouchet
Dealt a final deal with spontaneous generation and demonstrated that dust did indeed carried germs, as well as evidences for his study that there is an existence of exceptionally heat-resistant forms of bacteria.
John Tyndall
TRUE or FALSE: Fracastoro and a few others had suggested that “invisible organisms” produced disease.
TRUE. They believed that most of the diseases were due to causes such as supernatural forces, poisonous vapors called miasmas, and imbalances between the four humors thought to be present in the body.
Agostino Bassi demonstrated that silkworm disease were due to a?
Fungal infection
M. J. Berkeley proved that the Great Potato Blight of Ireland was caused by a?
Fungus
Pasteur was asked by the French government o investigate the pebrine disease of silkworms that was disrupting the silk industry. After several years of work, he showed that it was caused by what parasite?
Protozoan parasite
The first direct demonstration of the role of bacteria was made by Robert Koch. He used what disease to identify the bacteria that causes its occurence?
Bacillus anthracis and anthrax
