Flagella originate from_______________?
Correct answer: D. Basal body
- A. Cell membrane
- B. Cell wall
- C. Capsule
- D. Basal body
Explanation
A bacterial flagellum is anchored in the envelope by a basal body, which connects the hook and filament to the cell and acts as part of the rotary motor. Students may choose the cell membrane because the basal body crosses it and receives energy from the membrane, but the flagellum originates structurally from the basal body.
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