Mucin
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Questions and Answers

Which component of mucins is responsible for their extended structure and high viscosity?

  • Gal
  • GalNAc or GlcNAc
  • O-linked trisaccharides
  • Sialic acid (correct)
  • What is the primary function of mucins in the body?

  • Facilitating transport processes
  • Providing a protective barrier on the surface of epithelial cells (correct)
  • Ensuring lubrication between surfaces
  • All of the above
  • What are the typical components of O-linked trisaccharides found in mucins?

  • Gal, sialic acid, and O-linked trisaccharides
  • GalNAc or GlcNAc, sialic acid, and O-linked trisaccharides
  • GalNAc or GlcNAc, Gal, and sialic acid (correct)
  • Gal, sialic acid, and O-linked trisaccharides
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