Structure And Function Of Cell Organelle Cilia and Flagella
Jumat, 17 Agustus 2012
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on cell surface, There are often found cilia and flagella, which are a bulk with hair-like structure functioning as movement apparatus. In the structure, there is microtubulen called axoneme.
Cilia has 0.2 um in diameter, 8 um of length, and is mostly found in unicellular organism. In higher level animal, the cilia can be found in membrane tissues of respiratory tract.Thera are hundreds of cilia in one cell. Cilia ( singular: cilium) move or beat in a single direction.
Flagella is longer than cilia, every cell normaly has 1-2 flagella. The buck of cell can move to many direction. It can be found in Protozoa (Flagellata), Porifera (sponges), and Coelenterata (coral animals).
Proliferating Cell Nuclear Antigen (PCNA) Assay Proliferating cell nuclear antigen (PCNA) is a good marker for cell proliferation assay and is extensively used in cancer diagnosis and prognosis.
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