Lab 2.7: Anaerobic jar

Question 1

Each system can be used with a variety of ?? generating sachets (packets) that produce the desired ??

Answer 1

-gas
-atmosphere

Question 2

The small white strip at the left is the indicator, white=

Answer 2

-no O2

Question 3

Large white envelope is the ??

Answer 3

-gas generator packet

Question 4

The GasPak 100 Anaerobic Jar is large enough to hold ?? petri dishes

Answer 4

-12

Question 5

Methylene blue, which is ?? when oxidized (O2), turns ?? when the oxygen is removed

Answer 5

-blue
-colorless

Question 6

Which of the following is a common method for cultivating anaerobic microorganisms in the laboratory?

Answer 6

-employing anaerobic jars

Question 7

Anaerobic means that:

Answer 7

-they can not survive in the presence of oxygen

Question 8

Which of the following is a common method for creating anaerobic conditions in the laboratory?

Answer 8

-Employing an anaerobic chamber or glove box

Question 9

What is the role of anaerobic indicators in anaerobic chambers?

Answer 9

-to measure oxygen concentration

Question 10

What type of metabolism do anaerobic microorganisms primarily rely on?

Answer 10

-fermentation

Question 11

Which organisms do you grow in an anaerobic jar?

Answer 11

-anaerobic

Question 12

What is the purpose of using reducing agents in anaerobic growth media?

Answer 12

-To create a reducing environment by removing oxygen

Question 13

What kind of media do you to cultivate anaerobic bacteria:

Answer 13

-reducing

Question 14

What color is the indicator in an anaerobic jar when the oxygen is removed:

Answer 14

-white

Question 15

What is the role of anaerobic indicators in anaerobic chambers?

Answer 15

-To measure oxygen concentration