Question

When bacteria use citrate, the medium becomes alkaline, and the bromthymol blue indicator will be __________. When bacteria use citrate, the medium becomes alkaline, and the bromthymol blue indicator will be __________. green yellow clear black blue

Answer 1

Blue

Step-by-step explanation:

The test is called Simmons citrate agar tests (based on how organisms can utilize citrate). It can be used in differentiating the Enterobacteriaceae.

In this case, the organism is citrate positive if the medium turns blue