Media That Change Color as a Result of the Biochemical

Question

Media that change color as a result of the biochemical activity of growing bacteria
A) usually contain a pH indicator.
B) usually contain blood.
C) usually require the addition of various reagents before the color is evident.
D) contain a colorless reagent that breaks down.
E) are always selective media.

Accepted Answer

Media that change color as a result of growing bacteria usually contain a pH indicator. The indicator changes color as the pH of the media changes due to the metabolic byproducts of the bacteria.