Cytoskeleton Definition and Functions
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Questions and Answers

What is the main function of the cytoskeleton?

  • Cell division
  • Extracellular matrix adhesion
  • Transporting organelles
  • Providing structural support for the cell (correct)

How does the cytoskeleton aid in cell motility?

  • By helping cells move in their environment (correct)
  • By forming a nucleus
  • By transporting vesicles
  • By storing genetic material

Which statement accurately describes the appearance of the cytoskeleton?

  • It is only found outside the cell
  • It appears as small spherical structures
  • It resembles tent poles inside a circus tent (correct)
  • It looks like a smooth surface inside the cell

Besides providing structural support, what other function does the cytoskeleton perform?

<p>Anchoring the cell to the extracellular matrix (B)</p> Signup and view all the answers

How does the cytoskeleton contribute to cell to cell contact?

<p>By facilitating intracellular communication (B)</p> Signup and view all the answers

What is the main function of microfilaments in the cytoskeleton?

<p>Cell motility and muscle contraction (D)</p> Signup and view all the answers

Which protein makes up the intermediate filaments in the cytoskeleton?

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

What is the function of myosins in the cytoskeleton?

<p>Sliding actin filaments in muscle cells (C)</p> Signup and view all the answers

Which component of the cytoskeleton is essential for moving chromosomes during cell division?

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

In what direction do dyneins move along microtubules?

<p>From the plus end to the minus end (D)</p> Signup and view all the answers

What is the function of taxol, a toxin produced by a tree?

<p>Prevents microtubules from destabilizing (C)</p> Signup and view all the answers

Why is cytoplasmic streaming particularly prominent in plant cells?

<p>To optimize photosynthesis (D)</p> Signup and view all the answers

What is the bacterial homolog of actin involved in prokaryotic cytoskeleton?

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

How does taxol contribute to cancer treatment?

<p>By preventing cancer cells from dividing (C)</p> Signup and view all the answers

In what process does myosin movement along actin cytoskeleton fibers play a role?

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

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