Cilium and flagellum structure,artwork. Cilia and flagella (collectively known as undulipodia) are hair-like protrusions from a cell membrane. They have the same structure,but cilia are generally shorter and more numerous. The core,or axoneme (left),contains 20 microtubules (white and yellow circles),arranged as a central pair surrounded by nine other pairs,or doublets. Attached to each outer doublet are two dynein arms (red). Dynein is a motor protein that converts chemical energy into a sliding movement that causes the undulipodium to beat. At the base is a basal body,which is made of of nine triplets of microtubules around a hollow centre | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Leroy, Francis / Biocosmos |
Taille de l’image : | 5000 px × 3520 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |