Texas Cosmetology Operator Written ExamSanitation, Disinfection, and SafetyEasy
Which type of bacteria are round-shaped and appear alone or in groups, such as staphylococci and streptococci?
- ASpirilla
- BBacilli
- CCocci
- DFungi
Show answer & explanationAnswer & explanation
Correct answer: C. Cocci
Cocci are round-shaped bacteria that can appear singly, in pairs (diplococci), in chains (streptococci), or in clusters (staphylococci).
Why the other options are wrong
- A. Spirilla are spiral or corkscrew-shaped bacteria.
- B. Bacilli are rod-shaped bacteria.
- D. Fungi are a separate kingdom of organisms, not a type of bacteria.
Cocci Bacteria
Spherical or round-shaped bacteria that can occur in various arrangements, including clusters (staphylococci) or chains (streptococci).
- One of the three basic shapes of bacteria.
- Staphylococci cause boils, abscesses, and MRSA.
- Streptococci cause strep throat and blood poisoning.
Memory trick: Cocci are circles, clean and neat, spreading infections, oh so sweet!