Actin
A) has ATPase activity
B) is spherical
C) forms a helical chain that forms the main structural component of the thin filaments
D) is spherical and forms a helical chain that forms the main structural component of the thin filaments
E) all of these
Correct Answer:
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Q2: Actin
A) does not perform a power stroke
Q3: Myosin
A) is found in the A band
B)
Q4: Cross bridges
A) bind to actin during muscle
Q5: Troponin
A) binds with calcium to allow sarcomere
Q6: Skeletal muscle fibers
A) are some of the
Q8: Sarcomeres are arranged end to end as
A)
Q8: The region between two Z lines is
Q9: A function of tropomyosin is to
A) bind
Q11: The functional unit of skeletal muscle is
Q12: Thick filaments in skeletal muscle are composed
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