Cell Cilia and Their Functions
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Questions and Answers

What anchors the entire structure of basal bodies to the cytoskeleton?

  • Rootlets (correct)
  • Microtubules
  • Dynein
  • Axoneme
  • Which protein is responsible for making each cilium relatively stiff but elastic?

  • Dynein
  • Microtubules
  • Tubulin
  • Accessory proteins (correct)
  • What is the structure of the long flagellum that extends from fully differentiated sperm cells?

  • Microvilli brush border
  • Axonemal (correct)
  • Rootlets
  • Centrioles
  • What is one of the first pathologic changes in celiac disease concerning the small intestine?

    <p>Loss of basal bodies</p> Signup and view all the answers

    What is the function of primary cilia on most cell types?

    <p>To detect light, odors, motion, and liquid flow</p> Signup and view all the answers

    What is the core structure of a cilium called?

    <p>Axoneme</p> Signup and view all the answers

    Where are basal bodies located in relation to the cell?

    <p>Below the cell membrane</p> Signup and view all the answers

    How do kinesin and cytoplasmic dynein motors participate in cilium function?

    <p>Generate the movement along peripheral microtubules</p> Signup and view all the answers

    What structures are structurally very similar to centrioles, consisting of nine relatively short microtubular triplets linked together in a pinwheel-like arrangement?

    <p>Basal bodies</p> Signup and view all the answers

    What maintains the structure of the axoneme, which is elastic but relatively stiff?

    <p>Nexin cross-links</p> Signup and view all the answers

    Which proteins are responsible for transporting materials into and out of cilia by moving along the peripheral doublets of microtubules?

    <p>Kinesin and cytoplasmic dynein motors</p> Signup and view all the answers

    From the description provided, which part of the axoneme consists of microtubule A with 13 protofilaments?

    <p>Complete microtubule A</p> Signup and view all the answers

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