Carbohydrate Structures in Biology Quiz
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Questions and Answers

What is the major component of the hard exoskeletons of most arthropods and the cell walls of fungi?

  • Peptidoglycan
  • Chitin (correct)
  • Starch
  • Cellulose

    • How is chitin structurally different from cellulose?

  • 1-4 linkage of glucose monomers
  • Presence of acetylated amino group (correct)
  • Parallel chain arrangement
  • Presence of N-acetylmuramic acid

    • Which type of chitin arrangement includes pairs of parallel sheets separated by single antiparallel sheets?

  • δ-Chitin
  • γ-Chitin (correct)
  • α-Chitin
  • β-Chitin

    • What is the repeating disaccharide subunit of peptidoglycan composed of?

    <p>N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) (D)</p> Signup and view all the answers

    Which type of glycosaminoglycans are often made up of repeating substituted disaccharide units?

    <p>Heparan sulfate (D)</p> Signup and view all the answers

    Which oligosaccharide is commonly used in the ABO blood group system?

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

    What is the main storage polysaccharide of plants?

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

    Which type of glucose polymer, found in starch, consists of long unbranched chains of glucose subunits?

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

    Which polysaccharide is a major component of the bacterial cell wall?

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

    Which classification do Glycosaminoglycans (GAGs) belong to?

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

    What is the term for short chains of linked monosaccharides, containing 2 to 10 sugar units?

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

    What type of bond links the repeating disaccharide units in GAGs?

    <p>β-(1,4) glycosidic bond (D)</p> Signup and view all the answers

    Which of the following is NOT a classification group for Glycosaminoglycans (GAGs)?

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

    What is responsible for determining the ABO blood group system?

    <p>Type of oligosaccharides present (A)</p> Signup and view all the answers

    In the ABO blood group system, what is the standard oligosaccharide for Blood group O?

    <p>Fuc-Gal-GlcNAc-Gal (A)</p> Signup and view all the answers

    What is the linkage between the Mur2Ac residues in peptidoglycan structure?

    <p>β-(1,4) glycosidic bonds (B)</p> Signup and view all the answers

    Which of the following is NOT a main classification group for Glycosaminoglycans (GAGs)?

    <p>Amylose/amylopectin (B)</p> Signup and view all the answers

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