The initial screening of gram-negative rods is done by testing for the utilization of this carbohydrate.
A) Glucose
B) Sucrose
C) Lactose
D) Mannitol

Question

Quizplus · Accepted Answer

Among bacteria,there is great diversity on the ability to utilize carbohydrates.However,the most important carbohydrate determination test is determining lactose utilization.Lactose degradation has been used to initially differentiate those bacterial species able to ferment lactose (LF)and those that are nonlactose fermenters (NLFs).

The Initial Screening of Gram-Negative Rods Is Done by Testing