Question Detail

MIC 121 CULTURE MEDIA Objective Question
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Question

Which of the following is a common method to make an agar medium selective?
Options
A Increasing the water content to make it a broth.
B Reducing the incubation temperature to slow all growth.
C Adding inhibitory agents such as antibiotics, dyes, or altering the pH.
Correct Answer
D Using a biphasic consistency to separate different bacterial types.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Slide 14, 'CLASSIFICATION BASED ON FUNCTIONAL USE OR APPLICATION CONT'D,' states, 'Any agar media can be made selective by addition of certain inhibitory agents that do not affect the pathogen. Various approaches to make a medium selective include addition of antibiotics, dyes, chemicals, alteration of PH or a combination of these.'

Hint

Selective media allow certain organisms to grow while 'selecting against' others.

Question Info

Course: MIC 121
Topic: CULTURE MEDIA
Type: Objective
Difficulty: Not specified
Question 744 of 984
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