flagellum
flagellum
1. A thread-like organelle which usually functions in locomotion. Flagella are found on a range of eukaryotic cells, including those of certain protozoa and spermatozoa. Bacterial and eukaryotic flagella are very different both in structure and mode of operation and are not homologous. Bacterial flagella rotate; eukaryotic flagella undulate. The eukaryotic flagellum has the more complex structure, and there are two types: the whiplash type, which is smooth and whip-like, and the tinsel type, which bears numerous fine, hair-like projections along its length.
2. In insects, the antennal segments distal to the scape.
1. A thread-like organelle which usually functions in locomotion. Flagella are found on a range of eukaryotic cells, including those of certain protozoa and spermatozoa. Bacterial and eukaryotic flagella are very different both in structure and mode of operation and are not homologous. Bacterial flagella rotate; eukaryotic flagella undulate. The eukaryotic flagellum has the more complex structure, and there are two types: the whiplash type, which is smooth and whip-like, and the tinsel type, which bears numerous fine, hair-like projections along its length.
2. In insects, the antennal segments distal to the scape.
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flagellum
