The major cation responsible for regulating actin-myosin contraction is A) Ca²⁺. B) H⁺. C) K⁺. D) Na⁺.

Name: The major cation responsible for regulating actin-myosin contraction is A) Ca 2+ . B) H + . C) K + . D) Na + .
Brand: Quizplus
Rating: 4.9 (38 reviews)

Question

Quizplus · Accepted Answer

Calcium ions (Ca2+) are the major cations responsible for regulating actin-myosin contraction in muscle cells. They bind to troponin, causing a conformational change that allows myosin to bind to actin and initiate contraction.

The Major Cation Responsible for Regulating Actin-Myosin Contraction Is