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 (B)</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 (C)</p> Signup and view all the answers

What is the core structure of a cilium called?

<p>Axoneme (A)</p> Signup and view all the answers

Where are basal bodies located in relation to the cell?

<p>Below the cell membrane (D)</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 (B)</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 (D)</p> Signup and view all the answers

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

<p>Nexin cross-links (B)</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 (D)</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 (C)</p> Signup and view all the answers

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