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15 Cards in this Set
- Front
- Back
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psychrophiles
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-5 C to 20 C
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mesophiles
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20 C to 45 C (distinguishing characteristic growth at 37 C [human body temp], and inability over 45 C).
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thermophiles
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35 C and above (facultative thermo. and obligate thermo.)
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Facultative thermophile
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37 degrees C/optimum growth (45 C to 60 C)
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Obligate thermophile
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Organisms that will grow only at temps above 50 C with optimum growth temps above 60 C.
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turbid
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(broth) "none, light, moderate, heavy"
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flocculent
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(broth) "chunks"
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sediment
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(broth) growth settles to bottom
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pellicle
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(broth) growth covering and floating on entire surface
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ring
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(broth) growth floating on surface, forming 'ring'
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streamers
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(broth) like 'flocculent', no chunks, but lines extending from surface
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heavy
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(slant) growth is thick and may cover entire surface (spreading)
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effuse
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(slant) growth is thin, light
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filiform
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(slant) edge of growth is thin, light
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echinulate
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(slant) edge of growth is jagged (saw-toothed)
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