Cell Studies in 3D Systems Quiz
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Questions and Answers

What are the main components of filopodia?

  • Microtubules and intermediate filaments
  • Membrane receptors
  • F-actin bundles (correct)
  • Stress fibers

Which structure is characterized by containing integrins and associated proteins, connecting cell surface integrins with the cytoskeleton?

  • Focal adhesions
  • Filopodia
  • Podosomes (correct)
  • Lamellipodia

What is the major actin filament bundling protein in filopodia?

  • Myosin
  • Cofilin
  • Tropomyosin
  • Fascin (correct)

Which mechanobiology structure is involved in driving cell migration by actin polymerization at the leading edge?

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

In which cellular structures do actin filaments emanate rapidly from the actin core to the plasma membrane?

<p>Podosomes (D)</p> Signup and view all the answers

Which cellular structure is characterized by a core containing several coordinators of actin nucleation and a ring complex connecting cell surface integrins with the cytoskeleton?

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

What are invadopodia mainly involved in within cancer cells?

<p>Membrane protrusions and high proteolytic activities (C)</p> Signup and view all the answers

Which type of cellular structure exhibits a lifetime that is shorter than focal adhesions and only lasts a few minutes?

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

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