A tech is reading the biochemical tests for identifying a particular gram-negative rod.The organism has produced acid,indicated by a color change,in the closed tube only.This indicates that the organism is:
A) An oxidizer
B) A fermenter
C) Both an oxidizer and a fermenter
D) A reducer

Question

Quizplus · Accepted Answer

Bacteria that utilize carbohydrates in an anaerobic environment are called fermenters.Bacteria that utilize carbohydrates in an aerobic environment are called oxidizers; this would cause a color change in the open tube.If color changes occurred in both the anaerobic and aerobic tubes,the bacteria would be considered an oxidizer and a fermenter.Reducers will not cause color changes in this media.

A Tech Is Reading the Biochemical Tests for Identifying a Particular