Answer:
The purpose of the structure of a spirillum is to obtain more flexibility, which will facilitate its movement.
Explanation:
Spirillum bacteria are a phylum, the Spirochaetes. And its name is probably because of the spiral shape its body structure has. Due to this body structure, these bacteria have greater flexibility and can move with greater ease and agility. The movement they perform is circulatory wave (usually around the body itself).
