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BIOS 242 LAB PRACTICUM CHAMBERLAIN EXAM GRADED A+
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BIOS 242 LAB PRACTICUM CHAMBERLAIN EXAM GRADED A+
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BIOS 242 LAB PRACTICUMCHAMBERLAIN EXAM GRADED A+
___ technique is necessary when inoculating media - ANS-sterile (aseptic)
____ is the most widely used method of microbial control - ANS-heat
gram negative bacteria stain - ANS-pink
gram positive bacteria stain - ANS-purple
how does the streak plate method encourage growth of discrete colonies? - ANS-
pattern used to inoculate gradually thins out the sample and separates the cells
how is magnifying power calculated? - ANS-by multiplying the power of the ocular lens
by the power of the objective lens
how many species do colonies consist of if from a single cell? - ANS-one
identify bacillus - ANS-
identify coccus - ANS-
identify spirillum - ANS-
identify spirochete - ANS-
identify vibrio - ANS-
true or false: moist heat is more effective in killing microbes than dry heat - ANS-true
what are biosafety level four agents - ANS-agents that are likely to cause serious/lethal
human disease for which preventative interventions are not usually available
what are biosafety level one agents - ANS-agents that are not associated with disease
in health adult humans
what are biosafety level three agents - ANS-agents are associated with serious or lethal
human disease for which preventative interventions may be available
what are biosafety level two agents - ANS-agents that are associated with human
disease which is rarely serious and for preventative intervention are often available
what are mechanical removal methods? - ANS-hot water, steam, chemicals
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