Texas Cosmetology Operator Written ExamSanitation, Disinfection, and SafetyMedium
Which of the following types of bacteria is characterized by a corkscrew or spiral shape and can cause diseases like Lyme disease or syphilis?
- ABacilli
- BCocci
- CSpirilla
- DStaphylococci
Show answer & explanationAnswer & explanation
Correct answer: C. Spirilla
Spirilla are spiral or corkscrew-shaped bacteria. Cocci are round, and bacilli are rod-shaped. Lyme disease and syphilis are caused by specific spirilla (spirochetes).
Why the other options are wrong
- A. Bacilli are rod-shaped bacteria.
- B. Cocci are round-shaped bacteria.
- D. Staphylococci are a type of cocci (round bacteria in clusters).
Spirilla Bacteria
A classification of bacteria characterized by their spiral or corkscrew shape.
- Motile, often using flagella.
- Includes spirochetes, a subgroup.
- Associated with diseases like syphilis and Lyme disease.
Memory trick: Round Cocci, Rod Bacilli, Spiral Spirilla!