Skeletal muscle fibers
A) have T tubules within their sarcomeres
B) have Z lines extending down the middle of the I bands
C) contain gap junctions
D) have all of the above characteristics
E) have characteristics b and c
Correct Answer:
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Q2: Actin
A)has ATPase activity
B)are spherical
C)forms a helical chain
Q3: Myosin is
A)found in the I band
B)attached to
Q4: Thick filaments in skeletal muscle are composed
Q5: Z lines
A)are formed by the T tubules
B)extend
Q6: Troponin
A)binds with calcium to allow sarcomere shortening
B)breaks
Q8: The region between two Z lines is
Q9: Order the following muscle cell components from
Q10: Skeletal muscle fibers
A)are some of the longest
Q11: Identify the characteristic(s) shared by all types
Q12: The functional unit of skeletal muscle
A)is the
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