Multiple Choice
Which statement about the molecular arrangement of actin and myosin in myofibrils is true?
A) A thin filament consists of myosin and tropomyosin.
B) Two chains of myosin monomers are twisted into a helix.
C) Two strands of tropomyosin lie in the grooves of the myosin.
D) Troponin forms the head of the myosin molecule.
E) The myosin heads have ATPase activity and interact with the actin.
Correct Answer:
Verified
Correct Answer:
Verified
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