Long hair-like protoplasmic structures or extensions (actually organelles or rather microtubules)) composed of helically-coiled protein units that form the basal body of the cytoplasm of cells, and which enable cell locomotion (e.g., of spermatozoa) through a liquid medium by means of having a whip-like motility driven by the protein dyne in. \u00a0They have the same basic structure as cilia, but are longer in proportion to the cell bearing them, as well as being present in much smaller numbers. There are three types of flagella:\u00a0bacterial flagella (that rotate like screws), arc heal (prokaryote) flagella, and eukaryotic flagella of animals and plants. \u00a0The only commonalities between these different forms of flagella are that they adhere to the outside of a cell, and move to produce propulsion. \u00a0Other than that, their structures are quite different. \u00a0Both eukaryote cells and bacteria can move by means of flagella. \u00a0The eukaryote flagellum, however, is markedly different in structure from that of a bacterium, thus leading some to name them ‘aaundulipodium’. \u00a0It is a bundle of nine pairs of microtubules surrounding a central pair (the so-called 9+2 structure).<\/p>\n
See Acrosome<\/a>, Cell locomotion<\/a>, Cell migration<\/a>, Cilia<\/a>, Cytoplasm<\/a>, Cytoskeleton<\/a>, Eurkaryote cell (or organism), Filopodia<\/a>, Lamillipodia<\/a>, Microtubules<\/a>, Organelles<\/a>, Prokaryote cell (or organism)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Long hair-like protoplasmic structures or extensions (actually organelles or rather microtubules)) composed of helically-coiled protein units that form the basal body of the cytoplasm of cells, and which enable cell locomotion (e.g., of spermatozoa) through a liquid medium by means of having a whip-like motility driven by the protein dyne in. \u00a0They have the same … <\/p>\n