Cell Biology Refresher

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Questions and Answers

What is the primary site of ribosome assembly in a eukaryotic cell?

  • Nucleolus (correct)
  • Lysosomes
  • Golgi apparatus
  • Endoplasmic reticulum

What type of chromatin is associated with active transcription?

  • Euchromatin (correct)
  • Nucleolus
  • Heterochromatin
  • Chromatin

What is the function of the nuclear pore complex in a eukaryotic cell?

  • To compact DNA into chromatin
  • To regulate the transport of molecules in and out of the nucleus (correct)
  • To transcribe DNA into RNA
  • To synthesize proteins

What is the term for the process by which DNA is wrapped around histones to form chromatin?

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

What type of inheritance is shown in the given pedigree?

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

What is the primary function of integrins in the cell membrane?

<p>To link to actin filaments inside the cell and fibronectin in the extracellular matrix (B)</p> Signup and view all the answers

What is the main difference between proteins synthesized in the cytosol and those completed at the RER?

<p>The former are destined for the cytosol, nucleus, or organelles, while the latter are destined for the cell membrane or secretion (A)</p> Signup and view all the answers

What is the function of fibronectin in the extracellular matrix?

<p>To link to integrins in the cell membrane and actin filaments inside the cell (D)</p> Signup and view all the answers

What is the result of the interaction between proteoglycans and Na+ ions in the extracellular matrix?

<p>The formation of a gel-like structure that resists compression (C)</p> Signup and view all the answers

What is the primary location of protein synthesis in eukaryotic cells?

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

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