Which organism ferments glucose but not maltose, sucrose, or lactose and is oxidase positive?

Prepare for the CAMLPR Microbiology Test. Utilize flashcards and engaging multiple-choice questions, each equipped with descriptions and explanations. Ready yourself for an excellent performance!

Carbohydrate fermentation patterns together with the oxidase reaction are classic clues for identifying Neisseria species. This organism being oxidase positive fits Neisseria, but the specific sugar utilization set is what narrows it down. Fermenting glucose but not maltose, lactose, or sucrose means it produces acid from glucose only, not from the other common sugars used in routine tests. Among Neisseria species, only Neisseria gonorrhoeae shows glucose-only fermentation, whereas others in the genus typically ferment glucose plus maltose (and sometimes other sugars). Therefore, the combination of oxidase positivity and glucose-only fermentation points to Neisseria gonorrhoeae.