Antibiotic disk diffusion test

One way to determine which antibiotics can be used to treat a particular type of bacteria.

Broad-spectrum antibiotics

Works on both types of bacteria

Only works on a limited range of organisms

Several cells connected like a bunch of grapes

A line of cells connected end to end

A group of four cells arranged in a square

A group of eight cells arranged in a cube

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Coccus: Spherical-shaped
Bacillus: Rod-shaped
Spirillum: Spiral-shaped
Gram +: Thick SW
Purple in color
More easily treatable w/Antibiotics
Gram -: Thinner SW
Red/Pink
Harder to treat w/Antibiotics
Antibiotic disk diffusion test: One way to determine which antibiotics can be used to treat a particular type of bacteria.
Broad-spectrum antibiotics: Works on both types of bacteria
Narrow-spectrum antibiotics: Only works on a limited range of organisms
Diplo: A pair of cells connected
Clump: Several cells connected like a bunch of grapes
Chain: A line of cells connected end to end
Tetrad: A group of four cells arranged in a square
Sarcina: A group of eight cells arranged in a cube