Module 1: CELL STRUCTURE AND FUNCTION

Lecture 9: Cell locomotion (Amoeboid, Flagella, Cillar)

FigureĀ  2: Ciliary anf flagellar movement

The mechanism of force and movement (bending) by the flagellum has recently been studied extensively. It is well established now that the ciliary movement is generated by the microtubules and the associated structures of the flagellum. It was shown that the cell free flagella can be caused to move by adding an energy source such as ATP. Even broken pieces of cilia or isolated axoneme itself continue to beat, suggesting the role of microtubules in the movement. The contractile axostyle of some microorganisms such as Metamonadida. Bending force is produced by the sliding of microtubules.