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Centrioles

Centrioles. Meghan MacDonald and Natalie Lazzaro Mr. Cottman Biology 17 January 2013. Centrioles. Every animal-like cell has Centrioles. . They are found near the nucleus in the centrosome. . H elp when it comes time for the cell to divide.

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Centrioles

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  1. Centrioles Meghan MacDonald and Natalie Lazzaro Mr. Cottman Biology 17 January 2013

  2. Centrioles Every animal-like cell has Centrioles. They are found near the nucleus in the centrosome. Help when it comes time for the cell to divide. The Centrioles can only be seen when the cell is dividing. Discovered by Boveri and Van Beneden in the 1880s

  3. Connections Animal cells are eukaryotes and so areplant cells, but they don’t need centrioles. Centriole are made of proteins and proteins come from amino acid.

  4. Structure of a Centriole Made of microtubules with small threads attached to them called mitotic spindles. They are found in pairs and they move toward the nucleus when it comes time for the cell division.

  5. Division Process Centrioles are duplicated. These new centers radiate microtubules in star-shaped clusters known as asters. At first the two pairs of centrioles remain close, but as mitosis starts, the centrosome divides and the pairs are split up so that one set of centrioles is located in each of the new microtubule-organizing centers. These new centers radiate microtubules in star-shaped clusters known as asters. The pair of centrioles within a cell duplicates, and the two pairs migrate to opposite ends of the cell to collectively organize the mitotic spindle.

  6. Division Process Without the Centrioles Plant cells are able to reproduce without centrioles. Even certain animals cells can successfully divide when their Centrioles are destroyed.

  7. Citations Davidson, Michael W. "Centriole." Molecular Expressions Cell Biology: Animal Cell Structure - Centrioles. N.p., 1995. Web. 18 Jan. 2013. "cell." Compton's by Britannica, v 6.0. 2009. eLibrary. Web. 18 Jan. 2013. "Centriole." BSCB :: The British Society for Cell Biology :: Www.bscb.org. N.p., n.d. Web. 18 Jan. 2013. <http://www.bscb.org/?url=softcell/centrioles>.

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