PetriKey

Bacterium

Neisseria gonorrhoeae

Oxidase-positive Gram-negative diplococcus

nye-SEER-ee-uh gon-oh-REE-eye

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High-yield clue

Gram-negative diplococci + oxidase positive + STI coursework clue.

Overview

A Gram-negative diplococcus used in study questions about oxidase positivity, intracellular diplococci imagery, and antimicrobial-resistance surveillance vocabulary.

Classification

  • Gram-negative
  • Diplococci
  • Oxidase positive

Lab & identification clues

  • Oxidase positive
  • Diplococci morphology
  • NAAT vocabulary in coursework

Associations

  • STI public-health vocabulary
  • Drug-resistant gonorrhea framing
  • Mucosal infection concepts

Commonly confused with

  • Neisseria meningitidis
  • Moraxella catarrhalis

Your notes

Original student-study summary. Sources checked: OpenStax Microbiology 2e, NCBI Bookshelf Medical Microbiology, and CDC topic pages where applicable; reviewed 2026-06. Educational only; no diagnosis, treatment, dosing, or specimen-handling guidance.

OpenStax: Microbiology 2e organism classification foundationssourceNCBI Bookshelf: Medical Microbiology organism chapterssourceCDC: CDC disease and public-health topic pagessource