What is the role of tropomyosin in skeletal muscles?
A. Tropomyosin serves as a contraction inhibitor by blocking the myosin binding sites on the actin molecules.
B. Tropomyosin is the chemical that activates the myosin heads.
C. Tropomyosin serves as a contraction inhibitor by blocking the actin binding sites on the myosin molecules.
D. Tropomyosin is the receptor for the motor neuron neurotransmitter.
Answer:A
What is the role of tropomyosin in skeletal muscles?
A. Tropomyosin serves as a contraction inhibitor by blocking the myosin binding sites on the actin molecules. B. Tropomyosin is the chemical that activates the myosin heads. C. Tropomyosin serves as a contraction inhibitor by blocking the actin binding sites on the myosin molecules. D. Tropomyosin is the receptor for the motor neuron neurotransmitter.