Multiple Choice
Refer to the figure showing the components of a sarcomere. 
Which statement about the structures shown in the figure is true?
A) Structure 1 consists of three chains made of monomers.
B) Structure 1 shortens in length as contraction occurs.
C) Structure 2 includes "heads" that hydrolyze ATP.
D) Structure 3 increases in length as contraction occurs.
E) Structure 4 increases in length as contraction occurs.
Correct Answer:
Verified
Correct Answer:
Verified
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