Cytoskeleton in Anatomy - Lecture 5
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Questions and Answers

What is the main function of the cytoskeleton in a mammalian cell?

  • Protein synthesis
  • Cell shape maintenance (correct)
  • Energy production
  • DNA replication

Which subunits make up microtubules in a mammalian cell?

  • Carbohydrates and nucleic acids
  • Ribosomes and enzymes
  • Glycoproteins and lipids
  • Alpha and beta tubulin (correct)

What characterizes the polarity of microtubules in a mammalian cell?

  • Plus end elongates more rapidly (correct)
  • Minus end elongates more rapidly
  • No polarity
  • Both ends elongate at the same rate

Which cellular structure is a small unit made of microtubules and is part of the centrosome?

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

What is the role of the centrosome in a mammalian cell?

<p>Assisting in cell division (A)</p> Signup and view all the answers

What is the function of microtubules related to mitotic spindle formation?

<p>Form the mitotic spindle during cell division (A)</p> Signup and view all the answers

Which motor protein moves an organelle towards the plus end of microtubules?

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

What is the unique feature of centrioles ultra-structurally?

<p>Each centriole is in the form of a cylinder composed of 9 triplets of microtubules (9 x 3) (A)</p> Signup and view all the answers

What is the function of motile cilia and flagella?

<p>Enable cell movement through bending by sliding past each other (D)</p> Signup and view all the answers

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