Peroxisomes and Their Functions
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Questions and Answers

What is the function of peroxisomes?

  • Breaking down potentially toxic intracellular molecules (correct)
  • Synthesizing components of the myelin sheath of nerve cells
  • Organizing the cytoskeleton of the cell
  • Forming the mitotic spindle during cell division

Where are microtubules most important?

  • Synthesizing myelin sheath components
  • Cell division (correct)
  • Contractile cells
  • Decomposing hydrogen peroxide

What is the name of the structures located adjacent to the nucleus, which form the mitotic spindle during cell division?

  • Lysosomes
  • Centrioles (correct)
  • Peroxisomes
  • Microtubules

What is the function of actin filaments or microfilaments?

<p>Forming the framework (cytoskeleton) of the cell (D)</p> Signup and view all the answers

What is the function of intermediate filaments in a cell?

<p>Reinforce the cell interior and hold organelles in place (C)</p> Signup and view all the answers

Which class of intermediate filaments is involved in the nuclear structure and found in all cells?

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

What do abnormal intermediate filaments in dilated cardiomyopathy help to explain?

<p>The pathogenesis of the disease (A)</p> Signup and view all the answers

In which type of cells are neurofilaments characteristic?

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

What information can the identification of intermediate filaments in cells provide?

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

Why is identifying the specific type of intermediate filament in tumor cells useful?

<p>To identify the type of cell from which the tumor arose (A)</p> Signup and view all the answers

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