Certification Board for Sterile Processing and Distribution (CBSPD) Sterile Processing Technician Practice Exam

What is the shape of a Spirochete?

1. Square

2. Spherical

3. Spiral

4. Rod-shaped

The correct answer is: Spiral

Spirochetes are characterized by their distinct spiral shape, which allows them to move in a corkscrew motion. This morphological feature is significant because it enables spirochetes to navigate through viscous environments, such as those found in biological tissues or fluids. The spiral form is comprised of tightly coiled structures, which can vary in number of turns and overall length. This unique shape is critical for their motility and is a key identifying feature within the context of microbiology. Understanding the morphology of spirochetes is essential for recognizing their pathological roles in various diseases, such as Lyme disease and syphilis. Other shapes, like square, spherical, or rod-shaped, do not accurately represent the structure of spirochetes and are associated with different types of bacteria.