Biology, 03.02.2020 22:58 dlatricewilcoxp0tsdw

Cross bridge formation between myosin heads and actin molecules is caused by the elevation of calcium ion concentration in the cytosol. during rigor mortis, this elevation of calcium ion concentration in the cytosol is permanent because stop producing atp molecules required by the sarcoplasmic reticulum's calcium ion pumpstroponin molecules bind irreversibly to calcium ions to prevent them from being removed from the cytosoltropomyosin molecules bind irreversibly to calcium ions to prevent them from being removed from the cytosolacetylcholine continues to stimulate the release of calcium ions from the sarcoplasmic reticulum

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