Microbio History
What are the Domains of Life?
Bacteria, Eukarya, and Archaea
What are the two functions of bacterial appendages?
attachment and motility
what kind of organism uses light as its main energy source?
Phototroph
What is it called when bacillus bacteria form a side-by-side chain of cells?
Palisade
They established the cell as the fundamental unit of life
What is this bacterial arrangement called?
sarcina
what is the main difference between autotrophs and heterotrophs?
Autotrophs use inorganic carbons and Heterotrophs used organic carbons
What is an irregular cluster of round cells called?
staphylococcus
What does Koch's postulates test?
A specific microbe is the cause of a specific disease
What helps bacteria stick to surfaces?
Fimbrae and capsules
Ingest inorganic nutrients to meet their carbon and energy needs
lithoautotrophs
Rod-shaped cells arranged into a chain are what?
Steptobacillus
Which sub-disciplines in Biology tries to produce taxonomies representing natural relatedness between groups of living beings, and is based on evolution?
Phylogeny
The short, bristle-like appendages attached to the cell surface of some bacteria and used for adherence are called...
fimbriae
Organisms that get their carbon and energy from organic molecules
chemoheterotrophs
Lipopolysaccharide (LPS) is primarily found in what?
gram-negative bacteria
John Snow's groundbreaking work during the 1854 London Cholera outbreak is considered a pivotal moment in the history of epidemiology. What is the central contribution of Snow's research?
He meticulously mapped cholera cases and linked the outbreak to a specific contaminated water source, challenging the prevailing miasma theory and advocating for improved sanitation.
A bacterial cell able to practice chemotaxis is very likely to have which attachment structures?
flagella
You are testing a new bacterium. Its growth is optimal around 37 C but you also find that it can survive short exposures to high temperatures. You could classify this bacterium as an...
thermoduric mesophile
What is the name of a large molecule containing N-acetyl glucosamine and N-acetyl muramic acid cross-linked by short peptides?
Peptidoglycan