Microbiology 1 Flashcards
study of really small microorganisms
microbiology
cells that have nuclei
eukaryotic
cells that don’t have nuclei
prokaryotic
a specific causative agent, such as a bacterium or a virus, that can cause or causes a disease
pathogen
growth of microorganisms on artificial material
culture
the mixture of nutrients on which the microorganism is grown
culture medium
the growth of many different species and colonies of bacteria
mixed culture
method of separating bacteria in a mixed population of high cell density/large population and uses agar medium
Streak plate medthod
culture that only contain one species
pure culture
designed to suppress growth of unwanted bacte and encourage growth of other microbes
selective media
make it easier to distinguish colonies of desired organism from other colonies on plate
differential media
a complex polysaccharide and a solidifying agent for culture media
agar
lab method for testing the effectiveness of antibiotics
sensitivity test
who developed gram stain method
hans christian grain 1884
result will yield a pink/red stain; organisms have thin cell walls
gram negative
result will yield a purple/blue stain;organisms have thick cell walls
gram positive
separates bacteria into two groups and determines an organism’s cell wall structure
gram staining method
a mixed population of bacteria is diluted in tubes of liquid nutrient agar
pour plate medthod
type of antibiotics that only stop/inhibit growth of bacteria through refrigeration
bacteriostatic antibiotics
type of antibiotics that directly kills bacteria
bactericidal antibiotics
bacte develops in hot temp
thermophilic bacteria
bacte develops in room temp
mesophilic bacte
bacte develops in cold temp
psychrophilic bacte
the production of a chemical compound by a living organism
biosynthesis
