Sarcomere Proteins Quiz

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Questions and Answers

Which protein is responsible for maintaining and regulating the length of actin in the sarcomere?

  • Desmin
  • C protein
  • Dystrophin
  • Tropomodulin (correct)

What is the function of Desmin and Vimentin in the sarcomere?

  • Cross-linking and stabilizing adjacent myofibrils (correct)
  • Maintaining and regulating actin length
  • Linking laminin and agrin to actin filaments
  • Forming distinct stripes on either side of the M Line

What is the role of Dystrophin in the muscle cell?

  • Forming distinct stripes on either side of the M Line
  • Maintaining and regulating actin length
  • Cross-linking and stabilizing adjacent myofibrils
  • Linking laminin and agrin to actin filaments (correct)

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