Question

what is substrate for the methyl red test​

Answer 1

Answer:

The methyl red test detects production of acids formed during metabolism using mixed acid fermentation pathway using pyruvate as a substrate. The pH indicator Methyl Red is added to one tube and a red color appears at pH's lower than 4.2, indicating a positive test (mixed acid fermentation is used).

Answer 2

Explanation:

pyruvate as a substrate....