Question Detail

MIC 121 CULTURE MEDIA Objective Question
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Question

What is the purpose of Methylene blue or Resazurin in thioglycollate medium?
Options
A To provide extra nutrients for anaerobic growth.
B To act as a solidifying agent.
C To indicate the oxidation-reduction potential.
Correct Answer
D To inhibit the growth of facultative anaerobes.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Slide 18 specifies, "Methylene blue or resazurin is an oxidation-reduction potential indicator that is incorporated in the thioglycollate medium. Under reduced condition, methylene blue is colourless."

Hint

These substances change color based on the presence or absence of oxygen.

Question Info

Course: MIC 121
Topic: CULTURE MEDIA
Type: Objective
Difficulty: Not specified
Question 784 of 984
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