What characterizes flagella in a cell?

Flagella are specialized structures found on the surface of certain types of cells, particularly in some bacteria, protozoa, and sperm cells. Their primary function is to facilitate movement, allowing the cell to swim through liquid environments. This is achieved through the whip-like motion of the flagella, which propels the cell forward, enabling it to navigate toward nutrients or away from harmful substances.

While other cellular structures or mechanisms are involved in energy production, cell division, and DNA replication, flagella specifically serve the role of aiding in locomotion. This characteristic distinguishes them from other cellular components, which perform distinct and separate functions within the cell.