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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

Grows Neisseria

Chocolate Agar