Fibrous Proteins and Connective Tissue Quiz
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Questions and Answers

What is the most abundant protein in the body?

  • Collagen (correct)
  • Elastin
  • Keratin
  • Fibrin

    • What is the primary role of lysyl oxidase in collagen synthesis?

  • Initiating transcription of collagen genes
  • Cross-linking collagen fibers (correct)
  • Inhibiting collagen synthesis
  • Promoting collagen degradation

    • Which vitamin is essential for collagen synthesis?

  • Vitamin D
  • Vitamin K
  • Vitamin E
  • Vitamin C (correct)

    • What is the main structural role of elastin in the body?

    <p>Providing elasticity to tissues</p> Signup and view all the answers

    What is the function of desmosine cross-link in elastin?

    <p>Providing stability to elastin fibers</p> Signup and view all the answers

    Which protein is the most abundant in the body?

    <p>Collagen</p> Signup and view all the answers

    What is the primary structural feature of fibrous proteins?

    <p>Long cylindrical/rope-like shape</p> Signup and view all the answers

    Which vitamin plays a key role in collagen synthesis?

    <p>Vitamin C</p> Signup and view all the answers

    What is the main structural difference between collagen and elastin?

    <p>Collagen has a triple helical structure, while elastin has a rubber-like structure</p> Signup and view all the answers

    What is the cross-linking amino acid unique to elastin?

    <p>Desmosine</p> Signup and view all the answers

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