what are flagella made of
The bacterial flagellum is made up of the protein flagellin. Its shape is a 20 nanometer-thick hollow tube. It is helical and has a sharp bend just outside the outer membrane; this hook allows the axis of the helix to point directly away from the cell.n example of a eukaryotic flagellate cell is the mammalian sperm cell, which uses its flagellum to propel itself through the female reproductive tract. Eukaryotic flagella are structurally identical to eukaryotic cilia, although distinctions are sometimes made according to function and/or length.
Cilia and flagella are projections from the cell. They are made up of microtubules, as shown in this cartoon and are covered by an extension of the plasma membrane. They are motile and designed either to move the cell itself or to move substances over or around the cell.wo of these microtubules join to form one doublet in the cilia or flagella This is shown in the middle panel. Note that one of the tubules is incomplete. Furthermore, there are important microtubule associated proteins (MAPs) projecting from one of the microtubule subunits.