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Rigor mortis occurs after death because ____________________. multiple choice 2 the power stroke becomes stronger after death detachment of crossbridges does not occur due to the lack of ATP actin binding sites become permanently blocked so that crossbridge formation cannot occur no calcim is present to bind to the regulatory protein tropomyosin

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Muscle contraction in death does not occur. Rigor mortis always sets in after death and does not relax until 3-5 hours later.

Rigor mortis occurs after death because detachment of crossbridges does not occur due to the lack of ATP.

  • Following death, due to the unavailability of oxygen, ATP cannot be produced and ATP is needed for muscle contraction.

  • For the cross bridges to detach so that the process will start all over, ATP has to be utilized.

  • But as ATP is unavailable, the myosin head is unable to detach and remain stuck leading to rigor mortis in death.

Learn more about rigor mortis: https://brainly.com/question/13554527

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