Bacterium
Bacillus anthracis
Spore-forming aerobic Gram-positive rod
buh-SIL-us an-THRAY-sis
High-yield clue
Aerobic spore-forming rod + capsule + toxin vocabulary.
Overview
A spore-forming Gram-positive rod used in coursework for capsule, toxin, and Bacillus-versus-Clostridium contrasts.
Classification
- Gram-positive
- Rod
- Spore-former
- Aerobe
Lab & identification clues
- Nonmotile teaching distinction
- Capsule concept
- Spore-forming rod vocabulary
Associations
- Zoonotic/public-health vocabulary
- Biothreat awareness as a concept
- Toxin mechanism framing
Commonly confused with
- Bacillus cereus
- Clostridium perfringens
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.