what is the theory of spontaneous generation - Microorganisms can arise from non-living matter
(spontaneously)
theory of spontaneous generation is also called - abiogenesis
scientists involved in investigating the idea of spontaneous generation - Francesco Redi: proved maggots
didn't arise from rotting meat (open jars, gauze, and closed)
Louis Pasteur: filtered air through cotton plug and then s-flask (disproved it)
what are the structures present in hay infusions - they contained heat-resistant microbes
what experiment disproved the theory of spontaneous generation - Louis Pasteur's experiment with the
s-flask where the microorganisms got caught- demonstrated that air is filled with microorganisms
animacules are - microorganisms
animacules was coined by - Antony Van Leeuwenhoek (father of microbiology)
the system by which organisms are named is - nomenclature:
Genus: the 1st part of the scientific name
Species: epithet (name-not capital)
Strain: symbols etc.
in the scientific name Escherichia coli 0157:H7 which is the genus, species and strain? - genus:
Escherichia
species: coli
strain: 0157:H7
, Golden Age of Microbiology - 1857-1914
Beginning with Pasteur's work, discoveries included the relationship between microbes and disease,
immunity, and antimicrobial drugs
carbohydrates structure - carbon, hydrogen, and oxygen in a 1:2:1 ratio
carbohydrates function - source of food and carbon (energy)
Carbohydrates examples - sugars and starches
Phospholipid (cell membrane) - -composed of long H-C chains
-non-polar covalent bonds: hydrophobic head
-hydrophilic tail
-form lipid bilayer with heads and tails
Proteins (amino acids) - -proteins are made up of AA subunits
protein characteristics depend mostly on - shape
The shape of a protein is determined by - amino acid sequence
protein function is determined by - protein structure
protein denaturation - when proteins are subject to heat, acid or other conditions that disturb their
stability; protein bonds break, pH changes, and they lose their function
nucleic acids - carry genetic info in sequence of nucleotides
DNA - has 3 parts-
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 oneclass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.