Flashcards in Micro Packet 3 Deck (62)
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1
4 Growth requirements of bacteria
1)Temperature
2)Gas O2 REquirements
3)Nutriential
4)PH 6.5-7.5
2
Human blood pH
7.35-7.45
3
Destroys all bacteria
Thermal Depth Point
4
How many thermal death points are there for spores, and what are they for?
Two.
One for the vegetative form and one for the spore.
5
What temperature is best suited for growth?
Optimum temperature
6
Bacteria are classified according to...
growth at different temperatures
7
Cold loving bacteria
Psychrophilic
8
Medium temperature loving bacteria
Mesophilic
9
Heat loving bacteria
Thermophilic
10
Salt loving bacteria
Halophilic
11
Example of halophilic bacteria
Staphylococcus
12
Oxygen loving bacteria
Aerobes
13
CO2 loving bacteria
Anaerobes
14
Means Strict or only
Obligate
15
Means fundamentally tolerating. The gases can be present or absent.
Facultative
16
Grow only in the presence of O2
Obligate Aerobe
17
Grow only in the presence of CO2
Obligate Anaerobe
18
Fundamentally an anaerobe, but can grow in the presence of oxygen.
Facultative aerobe
19
Fundamentally an aerobe, but can grow in the absence of O2. Uses or tolerates a lack of O2.
Facultative Anaerobe
20
Types of Cultures:
Agar Plates
Agar slants
Broth (liquid)
Stabbs (Gelatin)
21
Used to study culture characters for growth patterns
Stabbs Culture
22
Types of media:
Complex
Reducing
Selective
Differential
Enrichment
23
Has extracts: Beef, yeasts, plants, blood; grows aerobes.
Complex Media
24
Has chemicals in it that combine to O2 to deplete the O2 in the media.
Reducing Media
25
A broth used to cultivate obligate anaerobes.
Thioglycollate Media
26
Thioglycollate Media is an example of what type of media?
Reducing Media
27
Has chemicals to inhibit some types of bacteria while allowing other types to grow.
Selective Media
28
Examples of selective media:
Brilliant Green Agar
Chocolate Agar
29
Isolates Salmonella
Brilliant Green Agar
30
