Lab 4-5 4-6 2-8 Role of Temp Flashcards Preview

Microbiology > Lab 4-5 4-6 2-8 Role of Temp > Flashcards

Flashcards in Lab 4-5 4-6 2-8 Role of Temp Deck (14):
1

What microbe does MacConkey agar detect?

Enterobacteriacease to ferment lactose

2

What does eosin methylene blue, EMB, contain?

Gelatin, lactose eosin Y and methylene blue

3

What is EMB used for?

Fecal coliform

4

What does MacConkey agar contain?

Lactose, bile salts, neural red, and crystal violet.

5

What does the GasPak Anaerobic System do?

Creates anaerobic, microaerophilic, or CO2 enriched conditions

6

What is in the GasPak?

sodium borohydride and sodium bicarbonate

7

What is the catalyst in the GasPak?

Palladium

8

MacConkey agar uses neural red dye. At what pH does it indicate?

0-6.8 pH. Organisms that ferment lower the pH.

9

If you get good growth in eosin methylene blue, EMB, what is the presumptive ID?

Gram negative

10

If you get purple metallic growth in eosin methylene blue, EMB, what is the presumptive ID?

Coliform

11

If you get good growth in MacConkey agar, what is the presumptive ID?

Gram negative

12

What is the name of the bacteria that grows between 0 degrees and 20 degrees C.?

Psychrophiles

13

What is the name of the bacteria that grows between 20 degrees and 45 degrees C.?

Mesophiles

14

What is the name of the bacteria that grows between 50 degrees and 60 degrees C?

Thermophiles