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Coccus: Spherical bacteria
Diplococci: Pairs of spherical bacteria
Streptococci: Chains of spherical bacteria
Staphylococci: Grape-like clusters of spherical bacteria
Solución
Certainly! Here's a breakdown of each term you've provided, describing the corresponding bacterial shapes:
1. **Coccus (plural: Cocci)**
- **Shape:** **Spherical**
- **Description:** Cocci are round-shaped bacteria. They can exist alone, in pairs, chains, or clusters, depending on their specific type and arrangement.
- **Examples:** *Staphylococcus aureus*, *Streptococcus pneumoniae*
2. **Diplococci (plural: Diplococci)**
- **Shape:** **Pairs of Spherical Bacteria**
- **Description:** Diplococci are cocci that occur in pairs. The term "diplo-" means double, indicating their paired arrangement.
- **Examples:** *Neisseria gonorrhoeae*, *Neisseria meningitidis*
3. **Streptococci (plural: Streptococci)**
- **Shape:** **Chains of Spherical Bacteria**
- **Description:** Streptococci are cocci that form long chains. The prefix "strepto-" derives from the Greek word for "twisted" or "chain," reflecting their arrangement.
- **Examples:** *Streptococcus pyogenes* (Group A Streptococcus), *Streptococcus pneumoniae*
4. **Staphylococci (plural: Staphylococci)**
- **Shape:** **Clusters Resembling Grapes**
- **Description:** Staphylococci are cocci that form irregular, grape-like clusters. The prefix "staphylo-" comes from the Greek word for "bunch of grapes."
- **Examples:** *Staphylococcus aureus*, *Staphylococcus epidermidis*
**Summary of Bacterial Shapes:**
- **Coccus:** Single spherical bacterium.
- **Diplococci:** Pairs of spherical bacteria.
- **Streptococci:** Chains of spherical bacteria.
- **Staphylococci:** Grape-like clusters of spherical bacteria.
Understanding these shapes is crucial in microbiology for identifying and classifying bacteria, as shape and arrangement are key characteristics used in diagnosis and research.
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