Lab practical 2 short answers Flashcards

1
Q

The fire extinguisher is out the side door and past the what? (two words)

A

beverage cart

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2
Q

The fire extinguisher is next to the what?

A

stairwell

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3
Q

How do you spell the type of arrangement that is long and has spirals?

A

spirochetes

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4
Q

How do you spell the type of arrangement that is short and stocky and spirals?

A

spirilum

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5
Q

What is the cell shape of yeasts?

A

Oval

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6
Q

Yeasts either have “no arrangement” OR they have what type of arrangement?

A

pseudohyphae

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7
Q

Are yeasts much bigger than bacteria?

A

Yes

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8
Q

What do yeasts have in their cell walls?

A

Chitan

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9
Q

What will not work because of the chitan in the cell wall of yeast? (two words)

A

gram stain

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10
Q

What is an example of a gram positive cell envelope?

A

Staphylococcus aureus

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11
Q

What is an example of a gram negative cell envelope?

A

Escherichia coli

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12
Q

What is an example of an acid fast cell envelope?

A

Mycobacterium tuberculosis

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13
Q

What is an example of an Endospore former and capsule former?

A

Bacillus anthracis

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14
Q

We use acid fast on what type of bacteria?

A

mycobacterium

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15
Q

What is used for the primary stain when performing acid fast stains?

A

methylene blue

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16
Q

What do we use in acid fast stains instead of regular alcohol?

A

acid alcohol

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17
Q

Is heat involved with acid fast staining?

A

Yes

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18
Q

What do we use after the acid alcohol and before the counterstain?

A

Heat

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19
Q

What is used as the counterstain in acid staining?

A

carbofusion

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20
Q

What material to we use in acid fast staining that makes us call it “acid fast”?

A

acid alcohol

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21
Q

Why do we use alcohol in gram stain?

A

to break down the cell wall to drive the dye in

22
Q

What happens if we use acid alcohol on a gram stain instead of the normal decolorizer of ethyl alchol? (two words)

A

completely decolorize

23
Q

What is the fundamental difference of the material contained in acid fast cell envelopes?

A

mycolic acid

24
Q

In one word, how would you describe a cell wall containing mycolic acid?

25
What is a medically significant acid fast cell?
Mycobacterium tuberculosis
26
What is the primary stain for spore staining?
malachite green
27
What is the counter stain for spore staining?
safranin
28
Is it easy for the spores to survive in infection?
Yes
29
What is needed for the body to kill spores?
Heat the body so high
30
What would also be killed if we heat the body high enough to kill the spores? (one word)
body
31
What is the relevance of spores in microbiology laboratory sterility? (three words)
Hard to kill
32
Where do we use the spores in microbiology laboratory sterility?
autoclave
33
What are the components of capsule stain?
India ink
34
What is the function of india ink in the process of capsule stain?
simple
35
Is India ink in a capsule stain a positive stain or negative stain?
negative
36
What is rendered ineffective by capsules in infection (not environment)?
phagocytosis
37
What happened if the temperature goes up on cell function?
enzymes denature
38
What cannot be reached if the temperature goes down on cell function?
activation energy
39
What type of temperature do Thermophiles like?
heat
40
What type of temperature do Pschryophiles like?
cold
41
What type of temperature do Mesophiles like? (one word)
body
42
What are the range of degrees in celsius that thermophiles survive in? (x to x)
20 to 70
43
What is the ideal number of degrees in celsius that thermophiles thrive?
50
44
What are the range of degrees in celsius that psychrophiles survive in?(x to x)
0 to 20
45
What is the ideal number of degrees in celsius that psychrophiles thrive in?
15
46
What is the range of degrees in celsius that mesophiles survive in? (x to x)
20 to 40
47
What is the ideal number of degrees in celsius that mesophiles thrive in?
37
48
There are three ways spores are relevant in bacterial survival in the environment. In the first way, the spores PROTECT AGAINST what? (two words)
drying out
49
There are three ways spores are relevant in bacterial survival in the environment. In the second way, the spores ACT AS A what? (two words)
food reserve
50
The reasons the spores can act as a food reserve is because they have something that can be eaten - what is it that can be eaten? (three words)
long chain sugars
51
There are three ways spores are relevant in bacterial survival in the environment. In the third way, the spores PROTECT AGAINST what?
radiation