MICROBIAL GROWTH AND NUTRITION MGN 1 Flashcards

1
Q

Usual pH of microorganisms

A

pH 6.5-7.5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why use white candle

A

Colored candles; dye - inhibitors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Species that require high salt amount

A

Vibrio

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Vibrio pH

A

8-10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is Lactobacillus acidophilus

A

Normal flora of vaginal tract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

42 degree species (2)

A

Campylobacter jejuni, Pseudomonas aeruginosa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Absence of oxygen is needed

A

Strict or obligate anaerobe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Capnophilic requires what amount of CO2

A

5-10%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Thermophilic means

A

50-60 deg Celsius needed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Best time to take antibiotics

A

Logarithmic phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Mesophilic temp

A

20-40 C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Stenothermophilic means

A

Short optimum temperature range

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

HACEK group is microaerophilic t or f, if false what should they be

A

False. Capnophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Needs cystine

A

Legionella pneumophila

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

major parts of bacterial metabolism

A

Anabolism, catabolism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Needs protein

A

Mycobacterium spp

20
Q

24 hrs generation time

A

Mycobacterium tuberculosis

22
Q

In death phase..

A

Culture becomes toxic to bacteria

23
Q

Obligate/strict aerobe bacterias

A

Pseudomonas, Neisseria, Brucella, Bordetella, Francisella

24
Q

3 metabolic pathways to breakdown glucose

A

EMP
PPP
EDP

25
Q

This pathway is used by Brucella abortus and lactobacilli

A

Pentose Phosphate Pathway

26
Q

This pathway converts glucose 6 phosphate to pyruvate

A

Entner Doudoroff Pathway

27
Q

Direct microscopic count (2)

A

Petroff Hausser counter, Electronic cell counter

28
Q

Escherichia coli generation time

A

20 minutes

30
Q

2 basic bacteria groups

A

Autotrophs and Heterotrophs

31
Q

Eurithermophilic means

A

Wide temp range