Ch4 term - centriole(sen tree ole A paired organelle that...

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centriole  (sen´ tree ole) A paired organelle that helps organize the microtubules in animal and protist  cells during nuclear division.  cilium  (sil´ ee um) (plural: cilia) [L.: eyelash] Hairlike organelle used for locomotion by many unicellular  organisms and for moving water and mucus by many multicellular organisms. Generally shorter than a  flagellum.  collagen  [Gk.  kolla : glue] A fibrous protein found extensively in bone and connective tissue.  cytoskeleton  The network of microtubules and microfilaments that gives a eukaryotic cell its shape and  its capacity to arrange its organelles and to move.  endomembrane system  Endoplasmic reticulum plus Golgi apparatus; also lysosomes, when present. A  system of membranes that exchange material with one another.  endoplasmic reticulum (ER)  [Gk.  endo : within + L.  plasma : form + L.  reticulum : net] A system of  membranous tubes and flattened sacs found in the cytoplasm of eukaryotes. Exists in two forms: rough  ER, studded with ribosomes; and smooth ER, lacking ribosomes. 
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