Question

After 24 hours of incubating your bacterial isolate to test for carbohydrate fermentation capabilities, your durham tube shows a yellow broth with a trapped bubble. What does this indicate?.

Answer 1

The bacteria were able to ferment the sugar source and release CO2.

Step-by-step explanation:

Fermentation is the process of breaking down sugars by the enzymes of microorganisms in the absence of oxygen. Microorganisms such as bacteria and fungi have a unique set of metabolic genes that can produce enzymes that break down different types of sugar metabolites.

I hope this helps!

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