Protein Targeting Mechanisms Quiz

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Questions and Answers

What is the purpose of targeting sequences in proteins?

  • To regulate protein synthesis
  • To help proteins reach their target site (correct)
  • To modify proteins for proper-folding
  • To remove unwanted proteins from the cell

Which category of proteins involves post-translational modifications?

  • Neither category
  • Category-1 proteins (correct)
  • Category-2 proteins
  • Both categories

Where do proteins synthesized on free ribosomes go?

  • Nucleus
  • Cytosol (correct)
  • Mitochondria
  • Peroxisome

Which proteins involve co-translational modifications?

<p>Category-2 proteins (A)</p> Signup and view all the answers

Where do proteins initially synthesized on free ribosomes go?

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

What is the purpose of specific modifications in some proteins?

<p>To modify proteins for proper-folding (A)</p> Signup and view all the answers

Where does synthesis of Category-2 proteins start?

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

What is the difference between Category-1 and Category-2 proteins?

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

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