Which component of a muscle does the calcium ion combine with to allow a contraction to occur?
A) myosin head
B) actin
C) troponin
D) T tubule

Name: Which component of a muscle does the calcium ion combine with to allow a contraction to occur? A) myosin head B) actin C) troponin D) T tubule
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Question

Quizplus · Accepted Answer

Calcium ions bind to troponin, which causes a change in the shape of the protein complex, allowing myosin heads to bind to actin and initiate muscle contraction.

Which Component of a Muscle Does the Calcium Ion Combine