The muscles of a dead body can remain in contracted state termed rigor - mortis for several hours, due to the lack of : 1) Calcium ions needed to bind troponin 2) ATP needed to break acto-myosin complex 3) Oxygen supply needed for myosin 4) Phosphorylated myosin
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Answer:
ATP needed to break acto-myosin complex
Step-by-step explanation:
When the body is dead, all actin gets attached with myosin and the bond cannot be broken because of the absence of ATP