Troponin Assists in Controlling the Interaction Between Myosin Heads and Thin

question 28

Multiple Choice

Troponin assists in controlling the interaction between myosin heads and thin filaments by ________.

• A) forming a long chain that covers the active sites of thin filaments
• B) storing calcium ions in the troponin-tropomyosin complex
• C) binding to myosin heads, which allows tropomyosin to pivot, thereby exposing the active sites
• D) assisting in the formation of the myofilaments
• E) binding calcium ions to produce a change in the orientation of the troponin-tropomyosin complex

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