Flagella and cilia are slender organellar protrusions of the eukaryotic cell membrane with sensory and motor function. Flagella and cilia are similar in that they share a microtubule-based cytoskeleton called the axoneme.  Motile cilia and flagella move extracellular fluids and particles, or propel cells such as sperm or unicellular organisms such as the green algae Chlamydomonas reinhardtii. Flagella dysfunction leads to reduced or absent motility … Continue reading Researchers identify lipid responsible for keeping brain fluid moving.