Texas Class A Barber Written ExamSanitation, Disinfection, and SafetyEasy
Which of the following types of bacteria are spiraled or corkscrew-shaped and can cause diseases like syphilis?
- AStaphylococci
- BSpirilla
- CCocci
- DBacilli
Show answer & explanationAnswer & explanation
Correct answer: B. Spirilla
Spirilla are a classification of bacteria characterized by their spiral or corkscrew shape, and they include the pathogens responsible for diseases such as syphilis and Lyme disease.
Why the other options are wrong
- A. Staphylococci are a specific type of cocci (round bacteria) that grow in clusters.
- C. Cocci are round-shaped bacteria.
- D. Bacilli are rod-shaped bacteria.
Bacterial Shapes
Bacteria are classified into three main shapes: Cocci (round), Bacilli (rod), and Spirilla (spiral).
- Cocci: spherical, can cause strep throat.
- Bacilli: rod-shaped, can cause tetanus, tuberculosis.
- Spirilla: spiral/corkscrew, can cause syphilis, Lyme disease.
Memory trick: Shapes inform us of bacterial groups.