VASE Microbiology and Disease Agents Practice Test 2025 – Complete Exam Prep

Corkscrew motion enables spirochetes to effectively penetrate and invade tissues, which is key to their pathogenicity. This unique form of motility allows spirochetes to navigate through viscous environments, such as mucus or tissues, where they can establish infection. The corkscrew shape and movement help them burrow into the host's tissues, making it easier to spread and cause disease.

While other options might seem relevant, they do not directly relate to the specific advantage conferred by corkscrew motion. For instance, rapid reproduction is more about their reproductive cycle than their motility. While spirochetes do have mechanisms to evade the immune system, this is not primarily facilitated by corkscrew movement. Surviving in dry conditions is not a characteristic typically associated with spirochetes, which prefer moist environments to thrive. Hence, the corkscrew motion specifically supports tissue invasion, aligning with the correct answer.