Q
Skeletal muscles______________?
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A
A. Contracts when calcium is taken up by sarcoplasmic reticulum
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B
B. Contracts when actin and myosin filaments shorten
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C
C. Contraction is initiated by calcium binding to troponin
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D
D. Contraction is initiated by calcium binding to tropomyosin
Correct Answer:
C. C. Contraction is initiated by calcium binding to troponin