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18 terms

micro biology lab

irsc
STUDY
PLAY
baccili/baccilus
fusiform
comida sparillium
spirillium
spirochates
darkfield microscopy
lights specimen with dark background, good for unstained LIVING, organisms in liquid. Allows you to see size, shape and motility. pale objects, scatters blight rays by specimen and increases contast
phase contrastmicroscopy
used to view livging organisms, or spec that would be damaged, also creates a brighter image,.
temperature for incubating
35-37 degrees celcius-
chemotaxis
movement by a cell or organism in reaction to a chemical stimulus
brownian motion
the chaotic movement of colloidal particles, caused by collision with particles of the solvent in which they are dispersed
chemotaxis positive
movement toward a chemical stimulus
negative chemotaxis
away from chemical stimulis
pleomorphism
(biology) the appearance of two or more distinctly different forms in the life cycle of some organisms
polar flagella
One flagella at one end of a bacterium
peritrichous flagella
Flagella that cover the surface of the cell
mycolic acid
thick waxy membrane, gram stain is not able to cut through
acid fast example
t.b, leperacy
acid fast stain +
pink
acid fast -
blue