Using Möeller's decarboxylase base medium,what color is a positive reaction and what causes this color to be produced?
A) Purple, alkaline environment produced
B) Yellow, acid environment produced
C) Purple, acid environment produced
D) Yellow, alkaline environment produced

Question

Quizplus · Accepted Answer

Bromcresol purple,the indicator,turns purple when an alkaline environment is produced after the carboxyl group is cleaved.Yellow is produced in an acid environment,but the resulting environment in the tube is alkaline.

Using Möeller's Decarboxylase Base Medium,what Color Is a Positive Reaction