The removal of calcium ions from the cytosol of skeletal muscle causes
A) The myosin binding sites on actin to be uncovered by tropomyosin
B) Tropomyosin to change conformation and thereby move troponin molecules over cross-bridge binding sites
C) Troponin to change conformation and thereby expose cross-bridge binding sites
D) The myosin binding sites on actin to be covered by tropomyosin
E) None of the choices are correct
Correct Answer:
Verified
Q10: Which of the following statements regarding the
Q11: Thick filaments in skeletal muscle are composed
Q12: ATP is necessary for each of the
Q13: An action potential in the motor end
Q14: Which of the following statements regarding skeletal-muscle
Q16: Binding of _ to myosin permits cross-bridge
Q17: During any isometric twitch in a skeletal
Q18: "Motor unit" refers to
A)A single motor neuron
Q19: Which of the following statements is true
Q20: The transverse tubules in a skeletal-muscle fiber
A)Store
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