FGCU MICROBIOLOGY (EXAM 1)
QUESTIONS AND CORRECT ANSWERS |
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Define microbiology
✓ -:- the study of microorganism
Define microorganisms
✓ -:- organisms that are too small to be be seen with the unaided eye
Define pathogen
✓ -:- microbes that cause disease
How do microorganisms benefit humans?
✓ -:- they decompose organic waste, produce fermented food, industrial
chemicals, and they produce products used in manufacturing and
treatment
How do microorganisms harm humans?
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✓ -:- a few microorganisms are pathogenic and can cause disease
How does understanding microorganisms help us?
✓ -:- helps use prevent food spoilage, prevents disease occurrences, and
we can better understand how aseptic techniques can be used to prevent
contamination and infection
Sammelweis
✓ -:- advocated hand washing to prevent transmission of puerperal fever
Lister
✓ -:- used a chemical disinfectant to prevent surgical wound infections
Koch
✓ -:- made postulates that proved that a specific microbe causes a specific
disease (evidence for germ theory)
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Postulate 1
✓ -:- the same microorganism has to be present in every case of disease
Postulate 2
✓ -:- The microorganisms are isolated from the tissues of a dead animal,
and a pure culture is prepared
Postulate 3
✓ -:- Microorganisms from the pure culture are inoculated into a healthy,
susceptible animal. The disease is reproduced
Postulate 4
✓ -:- The identical microorganisms are isolated and found in the tissue
specimens of the experimental animal
Fleming
✓ -:- observed that the penicilum fungus made an antibiotic penicillin
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Pasteurization
✓ -:- heat treatment of perishable fluids, like milk, beer, or wine
(prevents food spoilage)
Infectious disease
✓ -:- the state of damage or toxicity in the body caused by an infectious
agent
Germ theory
✓ -:- a specific microbe causes a specific disease
Antibiotic
✓ -:- a chemical substance from a microorganism that can inhibit or kill
another microbe
Bacteriology
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