Bacterium
Mycobacterium tuberculosis
Acid-fast rod
MY-koh-bak-TEER-ee-um too-ber-kyoo-LOH-sis
High-yield clue
Acid-fast rod + mycolic acid-rich wall + granuloma vocabulary.
Overview
An acid-fast organism used to teach mycolic acid, granuloma vocabulary, slow growth, and airborne public-health concepts.
Classification
- Acid-fast
- Rod
- Aerobe
- Slow-growing mycobacterium
Lab & identification clues
- Ziehl-Neelsen/acid-fast staining vocabulary
- Slow growth concept
- Mycolic acids
Associations
- Tuberculosis educational cases
- Granuloma vocabulary
- Latent versus active infection concepts
Commonly confused with
- Nocardia species
- Non-tuberculous mycobacteria
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.