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FGCU Microbiology (Exam 1) Practice Questions and Answers

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FGCU Microbiology (Exam 1) Practice Questions and Answers Define microbiology - ANSWER-the study of microorganism Define microorganisms - ANSWER-organisms that are too small to be be seen with the unaided eye Define pathogen - ANSWER-microbes that cause disease How do microorganisms benefit hu...

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  • October 30, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • FGCU
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FGCU Microbiology (Exam 1) Practice

Questions and Answers


Define microbiology - ANSWER✔✔-the study of microorganism


Define microorganisms - ANSWER✔✔-organisms that are too small to be be seen with the unaided eye


Define pathogen - ANSWER✔✔-microbes that cause disease


How do microorganisms benefit humans? - ANSWER✔✔-they decompose organic waste, produce

fermented food, industrial chemicals, and they produce products used in manufacturing and treatment


How do microorganisms harm humans? - ANSWER✔✔-a few microorganisms are pathogenic and can

cause disease


How does understanding microorganisms help us? - ANSWER✔✔-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 - ANSWER✔✔-advocated hand washing to prevent transmission of puerperal fever


Lister - ANSWER✔✔-used a chemical disinfectant to prevent surgical wound infections


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Koch - ANSWER✔✔-made postulates that proved that a specific microbe causes a specific disease

(evidence for germ theory)


Postulate 1 - ANSWER✔✔-the same microorganism has to be present in every case of disease


Postulate 2 - ANSWER✔✔-The microorganisms are isolated from the tissues of a dead animal, and a pure

culture is prepared


Postulate 3 - ANSWER✔✔-Microorganisms from the pure culture are inoculated into a healthy,

susceptible animal. The disease is reproduced


Postulate 4 - ANSWER✔✔-The identical microorganisms are isolated and found in the tissue specimens

of the experimental animal


Fleming - ANSWER✔✔-observed that the penicilum fungus made an antibiotic penicillin


Pasteurization - ANSWER✔✔-heat treatment of perishable fluids, like milk, beer, or wine (prevents food

spoilage)


Infectious disease - ANSWER✔✔-the state of damage or toxicity in the body caused by an infectious

agent


Germ theory - ANSWER✔✔-a specific microbe causes a specific disease




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Antibiotic - ANSWER✔✔-a chemical substance from a microorganism that can inhibit or kill another

microbe


Bacteriology - ANSWER✔✔-study of bacteria


Biogenisis - ANSWER✔✔-the hypothesis that living organisms arise from preexisting life


Spontaneous generation - ANSWER✔✔-the hypothesis that living organisms arise from non living matter,

or a "vital force"


How did Jenner demonstrate concept of vaccination? - ANSWER✔✔-He developed vaccination for

smallpox by inoculating individuals with cowpox (creating immunity for smallpox)


Innoculation - ANSWER✔✔-the implantation of microorganisms into or onto culture media


Incubation - ANSWER✔✔-medium is placed into a temperature controlled chamber to encourage

multiplication


Isolation - ANSWER✔✔-an individual cell is separated from other cells on a nutrient surface and forms a

colony


Inspection and Identification - ANSWER✔✔-Microbes can be identified through:


- microscopic appearance


- characterization of cellular metabolism

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