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Microbiology Xavier University of Louisiana Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed $14.89
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Microbiology Xavier University of Louisiana Questions & 100% Correct Answers- Latest Test | Graded A+ | Passed
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What is the concept of spontaneous generation? -:- living organisms could develop from nonliving or decomposing matter Who challenged the concept of spontaneous generation by showing that maggots on decaying meat came from flies, not from the meat itself? -:- Francesco Redi Who showed that ...

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  • September 4, 2024
  • 285
  • 2024/2025
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  • microbiology xavier university of louisiana questi
  • what is the concept of spontaneous generation

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2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!



Microbiology Xavier University of Louisiana
Questions & 100% Correct Answers- Latest
Test | Graded A+ | Passed
What is the concept of spontaneous generation?


✓ -:- living organisms could develop from nonliving or decomposing matter




Who challenged the concept of spontaneous generation by showing that maggots on

decaying meat came from flies, not from the meat itself?


✓ -:- Francesco Redi




Who showed that mutton broth boiled in flasks and then sealed could still develop

microorganisms, which supported the theory of spontaneous generation?


✓ -:- John Needham




Who showed that flasks sealed and then boiled had no growth of microorganisms?


✓ -:- Lazzaro Spallanzani




Who proposed that air carried germs?


✓ -:- Spallanzani




1|Page | Grade A+| 2024/2025

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

Who disproved the theory of spontaneous generation?


✓ -:- Louis Pasteur




Who demonstrated that dust carried microbes and proved evidence for the existence of

heat- resistant forms of bacteria?


✓ -:- John Tyndall




Who showed that a silkworm disease was caused by a fungus?


✓ -:- Agostino Bassi




Who demonstrated that the Great Potato Blight was caused by a water mold?


✓ -:- M. J. Berkely




Who showed that the pebrine disease of silkworms was caused by a protozoan parasite?


✓ -:- Louis Pasteur




Who developed a system of surgery designed to prevent microorganisms from entering

wounds?


✓ -:- John Lister




2|Page | Grade A+| 2024/2025

,2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

Who transformed the practice of surgery?


✓ -:- John Lister




Who established the relationship between Bacillus anthracis and anthrax?


✓ -:- Robert Koch




What are the Koch Postulates?


✓ -:- 1.The microorganisms must be present in every case of the disease but absent

from healthy individuals

2.The suspected microorganisms must be isolated and grown in pure culture


3. The same disease must result when the isolated microorganism is inoculated into a

healthy host


4. The same microorganism must be isolated again from the diseased host




Limitations of Koch's Postulates


✓ -:- -Some organisms cannot be grown in pure culture

-Using humans in completing the postulates is unethical


-Molecular and genetic evidence may replace




3|Page | Grade A+| 2024/2025

, 2024 /2025 | © copyright | This work may not be copied for profit gain | Excel!

What vaccination did Edward Jenner make?


✓ -:- smallpox vaccination




What vaccinations did Pasteur produce?


✓ -:- chicken cholera, rabies and anthrax




Who induced formation of dipped toxin-antitoxins rabbits


✓ -:- Emil von Behring and Shibasaburo Kitasato




Who showed that the silkworm disease was caused by fungus?


✓ -:- Bassi




Who demonstrated that the Great Potato Blight of Ireland was caused by a water mold?


✓ -:- M.J. Berkeley




Who showed that the perbrine disease of silkworms was caused by a protozoan parasite?


✓ -:- Louis Pasteur




A simple morphology and lack a true membrane-delimited nucleus



4|Page | Grade A+| 2024/2025

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