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11 Dec 2019

which of the following steps occurs last during the process of muscle contraction first and last step?

calcium ions bind to the protein triponin

myosin heads from cross-bridges with actin filaments

depolarization of the T tubules causes calcium channels in the sacroplamic reticulum to open

tropomyosin is displaced, exposing myosin binding sites o actin

ATP hydrolysis returns the myosin head to its unbound conformation

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Jean Keeling
Jean KeelingLv2
13 Dec 2019
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