Question

A bacillus bacterium with a single flagellum at each end is described as

• A. Monotrichous
• B. Amphitrichous
• C. Lophotrichous
• D. Peritrichous

Answer 1

The correct option is B Amphitrichous

Monotrichous. – Single polar flagellum. – Example: Vibrio cholerae.
Amphitrichous. – Single flagellum on both sides. – Example: Alkaligens.
Lophotrichous. – Tufts of flagella at one or both sides. – Example: Spirillum.
Peritrichous. – Numerous falgella all over the bacterial body.