What is the function of tropomyosin in skeletal muscle?
Understand the Problem
The question is asking about the specific functions of the protein tropomyosin in skeletal muscle, indicating a need for a detailed biological explanation.
Answer
To prevent muscle contraction by blocking actin-myosin interaction.
The function of tropomyosin in skeletal muscle is to prevent muscle contraction by blocking the interaction between actin and myosin filaments.
Answer for screen readers
The function of tropomyosin in skeletal muscle is to prevent muscle contraction by blocking the interaction between actin and myosin filaments.
More Information
Tropomyosin wraps around actin filaments, and in the presence of calcium, the complex allows muscle contraction to occur by freeing myosin binding sites on the actin.
Tips
A common mistake is to confuse tropomyosin with troponin, which also regulates muscle contraction but through different mechanisms.
Sources
- Tropomyosin - Wikipedia - en.wikipedia.org
- The role of tropomyosin-troponin in the regulation of skeletal muscle - pubmed.ncbi.nlm.nih.gov
- Tropomyosin | Definition & Function - Study.com - study.com
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