Midterm/lab6 Flashcards

0
Q

Temperature classification
Ps. fluorescens
E.coli
B.stearothermophilis

A

Temperature classification
Ps. fluorescens-psychrotroph
E.coli-mesophile
B.stearothermophilis-thermophile

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1
Q

Aerotolerance classification:
M.luteus
E.coli
C.sporogenes

A

Aerotolerance classification:
M.luteus-obligate aerobe
E.coli-facultative anaerobe
C.sporogenes-obligate anaerobe

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2
Q

Standard plate count OCD=

A

Colonies counted (CFU)/dilution factor (mL)

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3
Q

Disinfectant

A

Used on inanimate surfaces, strongest concentration

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4
Q

Antiseptic

A

Used on living tissues, weakest concentration

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5
Q

Can the same chemical be a antiseptic and a disinfectant?

A

Yes

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6
Q

Longest wavelength 315-400nm

A

UV-A

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7
Q

Most detrimental wavelength to bacteria

A

UV-C (100-280nm)

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8
Q

Antimicrobrial susceptibility test

A

Kirby-Bauer

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9
Q

Natural anti microbial agents produced by microorganisms

A

Antibiotics

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10
Q

Medium for Kirby Bayer test

A

Mueller-Hinton agar

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11
Q

Broth culture density based on

A

McFarland standards

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12
Q

Interpretation of Kirby-Bauer test is to determine if microbe is

A

Susceptible, resistant, or intermediate to the antibiotic

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13
Q

McFarland standards are used as a way to determine

A

Cell density based on turbidity

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