Why the muscles becomes likely stiff, when an animal dies. Concept introduction : The contraction of muscle cells rely on the interactions between the thick and the thin filaments. The thick filaments are called as the myosin molecules, whereas the thin filaments are called as the actin filaments. The contraction of muscles is the result of filaments motion that is powered by a chemical energy. Myosin molecules comprises of a head and a tail. The head portion is responsible for binding to the ATP (Adenosine Triphosphate).

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Chapter 50.5, Problem 2CC

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To determine: Why the muscles becomes likely stiff, when an animal dies.

Concept introduction: The contraction of muscle cells rely on the interactions between the thick and the thin filaments. The thick filaments are called as the myosin molecules, whereas the thin filaments are called as the actin filaments. The contraction of muscles is the result of filaments motion that is powered by a chemical energy. Myosin molecules comprises of a head and a tail. The head portion is responsible for binding to the ATP (Adenosine Triphosphate).

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