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Micro > Lab Exam 1 > Flashcards

Lab Exam 1 Flashcards

1
Q

What is the chemical inside antibacterial soap?

A

Benzalkonium Chloride

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2
Q

What is the chemical inside hibiclens soap?

A

Chlorhexidine

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3
Q

What are the names of the 4 objective lenses?

A

(4x) scanning lens, (10x) low power lens, (40x) high power lens, and (100x) oil immersion lens

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4
Q

Immersion oil does amazing things like

A

increase the resolution of lens

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5
Q

Resolution

A

the ability of lens to distinguish fine detail and structure

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6
Q

Numerical aperture

A

ability of lens to capture light

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7
Q

Iris diaphragm function

A

controls the amount of light from lamp

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8
Q

condenser lens function

A

used to focus light from lamp

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9
Q

Staphylo

A

cluster

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10
Q

Strepto

A

chain

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11
Q

Culture

A

when microbes grow in the presence of nutrients

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12
Q

What are the four major types of media?

A

Complex, Enriched, Selective, Differential

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13
Q

Example of complex media

A

TSA
Both Gram-negative and Gram positive bacteria will grow well

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14
Q

Example of enriched media

A

Blood agar

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15
Q

Example of selective media

A

Sabouraud Dextrose Agar
Selects for fungi only

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16
Q

Chemicals ingredients in Sabouraud Dextrose Agar

A

Acidic pH and Antibiotics

17
Q

Chemical ingredients in MacConkey Agar

A

Crystal violet and Bile salt

18
Q

Chemical ingredients in EMB

A

Eosin and Methylene Blue

19
Q

Chemical ingredients in HE Agar

A

Bile salt

20
Q

Example of Gram-Negative bacteria

A

E.coli

21
Q

Example of Gram-Positive

A

genus Staphylococcus

22
Q

Example of Lactose-fermenting Gram Negative Bacteria

A

E.coli

23
Q

Example of non-Lactose fermenting Gram Negative Bacteria

A

genus Salmonella

24
Q

Examples of Alpha-hemolytic bacteria

A

Streptococcus pneumoniae

25
Q

Examples of Beta-hemolytic

A

Staphylococcus aureus

26
Q

Examples of Gamma-hemolytic

A

Staphylococcus epidermis

27
Q

Quadrant streak plate method purpose

A

to dilute the bacterial population

Micro (4 decks)

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