Microbio Intro Flashcards
What is a simple cell cycle for a Bacteria?
10 minuet
“doubling time”
Bacteria replication is…
rapid
and with no cell death, exponential
Meningitis
Bacteria replicates so quickly that there’s an acute immune response- the immune response is the killer
In the lab cultures…
colonies on agar
cloudy broth
Microbiology can be applied to
Understanding disease, food poisoning, food borne infection, sample storage.
Creating disinfectants and surface science
How is bacterial growth presented on a graph?
Exponential, logarithmic scale.
Why? When theres a non linear compression of the y axis, some may reason there is less data to look at so we log10 the x axis to create an easy to read graph
What is Log10 of 10?
1
Lab Culture- how to grow bacteria?
1) Pre existing inoculum source
2) sustainable growth medium
3) suitable growth conditions such as T’ pH O2
Why do we use a solidified medium to grow bacteria?
It is easier to see and count the colonies
Why are micro-organisms important?
For cycling C N P S in agriculture Food industry Antibiotics Metal mining Genetic Engineering BioTechnology ie) Insulin
What is the Nitrogen cycle?
A range of micro-organisms that process Nitrogen in a life cycle.
What is Symbiosis?
The angler fish provides nutrition to bioiluminant bacteria into its lure, which helps fish catch p
What is the Germ theory of fermentation?
Disproved Abiogenesis, or spontaneous spores germination
In investigations, when air is forced out, no microorganisms but broth cooled and microorganisms were present- shows that anaerobes exist
Fermentaion Pathway Examples
Butyric Acid- gangrene
Lactic Acid- cheese
Ethyl Alcoholic- wine
Pasteurised
slows microbial growth
