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What can you conclude about the culture tested on the top right?

What can you conclude about the culture tested on the top right?

In the nitrate reduction test, you add reagent A and B and see no color change.  You then add Zn, and still observe no color change.  The most likely explanation:

Bacteria were grown on the plate below, and then Lugol’s iodine was added to the surface of the plate. Which of the following is FALSE?

Bacteria were grown on the plate below, and then Lugol’s iodine was added to the surface of the plate. Which of the following is FALSE?

What can you conclude about the culture tested on the top left?

In the image below, what is the indicator included in the media?

In the image below, what is the indicator included in the media?

What color is associated with a positive carbohydrate broth test?

Tube B contains broth of what pH?