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Centrioles, Cilia and Flagella

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Sage Lefebvre

on 5 February 2013

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Transcript of Centrioles, Cilia and Flagella

Centrioles, Cilia, and Flagella Appendages of the Cell 2 types of structures extending from the cell Flagella Cilia and Flagella There are three Flagella categories:
Eukaryotic, Bacterial, and Archaeal

The role of the Flagella is Locomotion and sensory Archaeal Similar to Bacterial Flagella
but having its own unique structure which includes
lacking a central channel Prophase Interphase Interphase is the time that the Centrioles
are not dividing and are at rest. Examples: moving unicellular organisms or cells within a multicellular organism Cylinder structures formed of microtubles (proteins of the cytoskeleton) Centrioles Involved in two phases: Interphase and Prophase Their Structure has a whip like resemblance It is composed of many filaments
that rotate as a single assembly and
powered by ATP Eukaryotic Comparable structurally to Eukaryotic Cilia with any distinctions made by difference of function or length. Bacterial Made of protein flagellin; holding a helical
shape of about 20 nanometers thick Two animal cells during Interphase. It is the phase between cell change
in both meiosis and mitosis The first state of cell division. Metaphase Anaphase Telophase Anaphase where the The phase of cell division The time when two sets of
chromosomes separate
during mitosis. The final phase of cell division
before the nuclei return to
Interphase Motile Cilia Cilia Primary Cilia Cilia are hair-like organelles that
extend from the surface of
mammalian cells.
Their function is to move materials.
The cilia length is 1-10 micrometers,
Their width is less than one
micrometer. Motile Cilia are found in the lungs,
respiratory track, and middle ear. This category of cilia move in rhythmical waving or beating motions In some cases, Primary Cilia act as
sensory antenna for the cell. For example: in the kidney, they bend with the flow of urine to tell the other
cells there is a flow of urine. They allow for easy breathing without
irritation. between Prophase and chromosomes align on the center of the spindle This Flagellum is driven by a rotary engine made of protein. The engine is powered by proton motive force The amount of and arrangement of Bacteria
flagella are dependent on the species. They are appearing as single appendages. Centrioles Works Cited: http://www.daviddarling.info/encyclopedia/ETEmain.html http://www.ciliopathyalliance.org/ http://en.wikipedia.org/wiki/Main_Page Owl Book & BSCS Text Book http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Cilia.html http://www.biology-online.org/dictionary/Centriole
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