how-does-the-troponin-tropomyosin-complex-regulate-muscle-contraction

Question

How does the troponin-tropomyosin complex regulate muscle contraction?

Accepted Answer

By blocking myosin binding sites on actin, preventing contraction.

Answer

By increasing calcium ion concentration in the sarcoplasmic reticulum.

Answer

By shortening the sarcomere directly.

Answer

By binding to myosin and facilitating contraction.