In muscle function at the sarcomere level, the formation of cross-bridges is regulated by the binding of ________ ions to ________.

A. calcium; tropomyosin
B. sodium; troponin
C. sodium; tropomyosin
D. calcium; troponin
E. calcium; myosin


Answer: D

Biology & Microbiology

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Avery, MacLeod, and McCarty showed that DNA was the transforming principle by demonstrating that mice survived

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Biology & Microbiology