Card 11 / 34: In striated muscle, contraction occurs after specific binding sites on the actin are exposed by an interaction between:
A)
calcium ions and proteins (troponin and tropomyosin)
B)
sodium ions and myosin
C)
autorhythmic cells and conduction
D)
calcium ions and ATP
Answer:
A) calcium ions and proteins (troponin and tropomyosin)
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Nick Swain |
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