Bacteria Flashcards
what limits bacteria growth
the translation time/ ribosome places an inherent limit on bacterial growth rate
when can extreme bacteria occur but not be extremophiles
-very fast/slow growing
-very large/small
-very large genome
-extreme cellular complexity
-archaea
why can archaea be considered extreme bacteria
similar to bacteria in shape and reprducing asexually but their metabolic pathways are more similar to eukaryotes (hard to grow in a lab)
what are extremophiles
organisms that grow optimally in environments considered extreme (they are one of the most abundant lifeforms)
name 3 extremophile bacteria
-thermophiles (survive at 41-122 degrees)
-psychrophiles (found 2km deep in artic ice)
-xerotolerance (survive in dry conditions)
within extremophiles what is modulated to function in extreme conditions
key biological processes
What conditions can a polyextremophile survive in
Cold, dehydration, vacuum, acid, ionising radiation and UV
What is one of the most radiant-resistant organisms known
A polyextremophile
How many stages are involved in studying extreme biology
7 (collecting, culturing, examining, extracting genomic material, knock out key genes, express key genes in workhorse bacteria, solve structures of key proteins)
Give some examples of what studying extreme bacteria has allowed us to understand
PCR, biosensing, synthetic biology
Give some examples of what studying extreme bacteria has allowed us to understand
PCR, biosensing, synthetic biology
