PLATE COUNT METHOD Flashcards

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1
Q

T/F:
You count colonies instead of bacterial cells?

A

TRUE

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2
Q

What is the Standard Plate Count (SPC)

A

colonies that are seen on the plates after incubation represent living organisms

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3
Q

What the Colony-Forming Units (CFU)?

A

when the number of viable bacteria in a sample is expressed as the “number of colonies”

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4
Q

What was the mechanism used to calculate ever colony on the plate?

A

Quebec Colony Counter

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5
Q

How to calculate the number of organisms per ml of culture?

A

multiply the number of colonies counted on the plate by the dilution factor (i.e, 10^-6)

CFU = number of colonies / dilution factor

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