Oxidation involves bacteria digesting sugars using oxygen. F…

Oxidation involves bacteria digesting sugars using oxygen. Fermentation involves bacteria digesting sugars without oxygen. O-F media is used to test bacteria for their ability to oxidize or ferment sugars. Which set of tubes below is capable of both oxidation and fermentation?  

Imagine you are a researcher investigating antibiotic resist…

Imagine you are a researcher investigating antibiotic resistance in the common lab bacterium E. coli (K-12 variety).  To determine initial resistance level, you test the E. coli against 3 different antibiotics, marked A, B and C.  Presuming the results shown are typical (you’d typically try this many times), which of the following statements is accurate?