Exam (elaborations)
Brief History of Microbiology Questions and Answers 2024
- Course
- Institution
Brief History of Microbiology
[Show more]
Content preview
Brief History of Microbiologyvan Leeuwenhoek (1673) - answer Developed simple microscopes. First to observe
microbes (wee animalcules). Father of Microbiology
Spontaneous generation - answer living organisms can arise from nonliving matter Ex:
Moist soil toads, snakes, mice
Biogenesis: - answer living organisms can arise only from preexisting living organisms
Francesco Redi - answer set up an experiment to disprove spontaneous generation of
maggots. Filled 2 jars with decaying meat, sealed one and left the other open (only the
open jar developed maggots). Another experiment was set up in which a jar was
covered with a fine mesh instead of being sealed so that fresh air could enter the jar
(again, only the open jar developed maggots) Proved that the flies had to come in
contact with the meat and lay their eggs on it, maggots did not arise spontaneously
John Needham - answer seemed to help prove the case for spontaneous generation by
heating nutrient broth and pouring it into covered flasks (developed microbial growth) he
claimed that the "vital force" had been destroyed by the heating
Lazzaro Spallanzani - answerhe showed that broth that was heated after being put into
a sealed flask did not develop microbial growth.
Louis Pasteur - answer1)Microorganisms can be present in nonliving matter (even in
air). 2)Spontaneous generation disproved. 3)Heat can destroy microbes
who discovered Aseptic Techniques? - answerPasteur. Used to prevent the
contamination by unwanted microorganisms
Water purification, sewage collection and treatment - answerRomans developed
sophisticated drinking water and sewer systems (even indoor plumbing), but these
ideas were lost during the Dark Ages.Most villages, towns, and cities had problems with
certain diseases due to fecal contamination of their drinking water because they lacked
sewer systems. Development of good public sanitation facilities during the 18th and
19th centuries in what are now "developed" countries, drastically decreased their
incidence of epidemics of cholera, typhoid and dysentery
Bassi (1830s-40s) - answerPerhaps the first to demonstrate a microbial cause of
disease. Showed that a microscopic fungus causes a disease in silkworms. Suggested
that human diseases could be caused by microbes also
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller julianah420. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now