A spherical bacterium is called?

A spherical bacterium is called?

• A. Coccus
• B. Bacillus
• C. Spirillum
• D. Vibrios

Answer: (A)

Bacterial shapes are often used to describe and classify organisms. A spherical bacterium is described as a coccus. The name comes from a Greek word for berry, reflecting the round shape. Cocci can occur alone, in pairs, in chains, or in clusters, depending on how the cells divide and remain attached. In contrast, bacillus refers to rod-shaped bacteria, spirillum to spiral-shaped bacteria, and vibrios to curved, comma-shaped bacteria. So the spherical form is best described as a coccus.

Bacterial shapes are often used to describe and classify organisms. A spherical bacterium is described as a coccus. The name comes from a Greek word for berry, reflecting the round shape. Cocci can occur alone, in pairs, in chains, or in clusters, depending on how the cells divide and remain attached. In contrast, bacillus refers to rod-shaped bacteria, spirillum to spiral-shaped bacteria, and vibrios to curved, comma-shaped bacteria. So the spherical form is best described as a coccus.