In the phenol broth red test (shown),a yellow color and bubble (as shown in the far left vial)indicate

Name: In the phenol broth red test (shown),a yellow color and bubble (as shown in the far left vial)indicate
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Question

Quizplus · Accepted Answer

The yellow color indicates that acidic fermentation products (such as lactic, acetic, or formic acid) have been produced, while the presence of a bubble indicates gas production. Therefore, the best choice is A, which describes acidic fermentation products and gas production.

In the Phenol Broth Red Test (Shown),a Yellow Color and Bubble